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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3947 Linux kernel vulnerabilities 21 December 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Existing Account Access Privileged Data -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-18710 CVE-2018-18690 CVE-2018-18445 CVE-2018-18386 CVE-2018-16276 CVE-2018-14734 CVE-2018-12896 CVE-2018-10902 CVE-2017-18174 CVE-2017-2647 Reference: ESB-2018.3584 ESB-2017.2807 Original Bulletin: http://www.ubuntu.com/usn/usn-3846-1 http://www.ubuntu.com/usn/usn-3847-1 http://www.ubuntu.com/usn/usn-3847-2 http://www.ubuntu.com/usn/usn-3847-3 http://www.ubuntu.com/usn/usn-3848-1 http://www.ubuntu.com/usn/usn-3848-2 http://www.ubuntu.com/usn/usn-3849-1 http://www.ubuntu.com/usn/usn-3849-2 Comment: This bulletin contains eight (8) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3846-1 December 20, 2018 linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-raspi2 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.10 Summary: The system could be made to expose sensitive information. Software Description: - - linux: Linux kernel - - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - - linux-azure: Linux kernel for Microsoft Azure Cloud systems - - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - - linux-kvm: Linux kernel for cloud environments - - linux-raspi2: Linux kernel for Raspberry Pi 2 Details: It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: linux-image-4.18.0-1005-gcp 4.18.0-1005.6 linux-image-4.18.0-1006-kvm 4.18.0-1006.6 linux-image-4.18.0-1007-aws 4.18.0-1007.9 linux-image-4.18.0-1007-azure 4.18.0-1007.7 linux-image-4.18.0-1008-raspi2 4.18.0-1008.10 linux-image-4.18.0-13-generic 4.18.0-13.14 linux-image-4.18.0-13-generic-lpae 4.18.0-13.14 linux-image-4.18.0-13-lowlatency 4.18.0-13.14 linux-image-4.18.0-13-snapdragon 4.18.0-13.14 linux-image-aws 4.18.0.1007.7 linux-image-azure 4.18.0.1007.8 linux-image-gcp 4.18.0.1005.5 linux-image-generic 4.18.0.13.14 linux-image-generic-lpae 4.18.0.13.14 linux-image-gke 4.18.0.1005.5 linux-image-kvm 4.18.0.1006.6 linux-image-lowlatency 4.18.0.13.14 linux-image-raspi2 4.18.0.1008.5 linux-image-snapdragon 4.18.0.13.14 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3846-1 CVE-2018-18710 Package Information: https://launchpad.net/ubuntu/+source/linux/4.18.0-13.14 https://launchpad.net/ubuntu/+source/linux-aws/4.18.0-1007.9 https://launchpad.net/ubuntu/+source/linux-azure/4.18.0-1007.7 https://launchpad.net/ubuntu/+source/linux-gcp/4.18.0-1005.6 https://launchpad.net/ubuntu/+source/linux-kvm/4.18.0-1006.6 https://launchpad.net/ubuntu/+source/linux-raspi2/4.18.0-1008.10 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3847-1 December 20, 2018 linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-oem, linux-raspi2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux: Linux kernel - - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - - linux-azure: Linux kernel for Microsoft Azure Cloud systems - - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - - linux-kvm: Linux kernel for cloud environments - - linux-oem: Linux kernel for OEM processors - - linux-raspi2: Linux kernel for Raspberry Pi 2 Details: It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734) It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276) It was discovered that the BPF verifier in the Linux kernel did not correctly compute numeric bounds in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-18445) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1026-gcp 4.15.0-1026.27 linux-image-4.15.0-1028-kvm 4.15.0-1028.28 linux-image-4.15.0-1030-oem 4.15.0-1030.35 linux-image-4.15.0-1030-raspi2 4.15.0-1030.32 linux-image-4.15.0-1031-aws 4.15.0-1031.33 linux-image-4.15.0-1036-azure 4.15.0-1036.38 linux-image-4.15.0-43-generic 4.15.0-43.46 linux-image-4.15.0-43-generic-lpae 4.15.0-43.46 linux-image-4.15.0-43-lowlatency 4.15.0-43.46 linux-image-4.15.0-43-snapdragon 4.15.0-43.46 linux-image-aws 4.15.0.1031.30 linux-image-azure 4.15.0.1036.36 linux-image-gcp 4.15.0.1026.28 linux-image-generic 4.15.0.43.45 linux-image-generic-lpae 4.15.0.43.45 linux-image-gke 4.15.0.1026.28 linux-image-kvm 4.15.0.1028.28 linux-image-lowlatency 4.15.0.43.45 linux-image-oem 4.15.0.1030.35 linux-image-raspi2 4.15.0.1030.28 linux-image-snapdragon 4.15.0.43.45 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3847-1 CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-43.46 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1031.33 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1036.38 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1026.27 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1028.28 https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1030.35 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1030.32 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3847-2 December 20, 2018 linux-hwe, linux-aws-hwe, linux-azure, linux-gcp vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - - linux-azure: Linux kernel for Microsoft Azure Cloud systems - - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - - linux-hwe: Linux hardware enablement (HWE) kernel Details: USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 18.04 LTS for Ubuntu 16.04 LTS. It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734) It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276) It was discovered that the BPF verifier in the Linux kernel did not correctly compute numeric bounds in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-18445) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.15.0-1026-gcp 4.15.0-1026.27~16.04.1 linux-image-4.15.0-1031-aws 4.15.0-1031.33~16.04.1 linux-image-4.15.0-1036-azure 4.15.0-1036.38~16.04.1 linux-image-4.15.0-43-generic 4.15.0-43.46~16.04.1 linux-image-4.15.0-43-generic-lpae 4.15.0-43.46~16.04.1 linux-image-4.15.0-43-lowlatency 4.15.0-43.46~16.04.1 linux-image-aws-hwe 4.15.0.1031.32 linux-image-azure 4.15.0.1036.41 linux-image-gcp 4.15.0.1026.40 linux-image-generic-hwe-16.04 4.15.0.43.64 linux-image-generic-lpae-hwe-16.04 4.15.0.43.64 linux-image-gke 4.15.0.1026.40 linux-image-lowlatency-hwe-16.04 4.15.0.43.64 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3847-2 https://usn.ubuntu.com/usn/usn-3847-1 CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710 Package Information: https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1031.33~16.04.1 https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1036.38~16.04.1 https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1026.27~16.04.1 https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-43.46~16.04.1 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3847-3 December 20, 2018 linux-azure vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux-azure: Linux kernel for Microsoft Azure Cloud systems Details: USN-3847-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux kernel for Microsoft Azure Cloud systems for Ubuntu 14.04 LTS. It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734) It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276) It was discovered that the BPF verifier in the Linux kernel did not correctly compute numeric bounds in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-18445) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-4.15.0-1036-azure 4.15.0-1036.38~14.04.2 linux-image-azure 4.15.0.1036.23 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3847-3 https://usn.ubuntu.com/usn/usn-3847-1 CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18445, CVE-2018-18690, CVE-2018-18710 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3848-1 December 20, 2018 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 16.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux: Linux kernel - - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - - linux-kvm: Linux kernel for cloud environments - - linux-raspi2: Linux kernel for Raspberry Pi 2 - - linux-snapdragon: Linux kernel for Snapdragon processors Details: It was discovered that a double free existed in the AMD GPIO driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18174) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.4.0-1039-kvm 4.4.0-1039.45 linux-image-4.4.0-1074-aws 4.4.0-1074.84 linux-image-4.4.0-1102-raspi2 4.4.0-1102.110 linux-image-4.4.0-1106-snapdragon 4.4.0-1106.111 linux-image-4.4.0-141-generic 4.4.0-141.167 linux-image-4.4.0-141-generic-lpae 4.4.0-141.167 linux-image-4.4.0-141-lowlatency 4.4.0-141.167 linux-image-4.4.0-141-powerpc-e500mc 4.4.0-141.167 linux-image-4.4.0-141-powerpc-smp 4.4.0-141.167 linux-image-4.4.0-141-powerpc64-emb 4.4.0-141.167 linux-image-4.4.0-141-powerpc64-smp 4.4.0-141.167 linux-image-aws 4.4.0.1074.76 linux-image-generic 4.4.0.141.147 linux-image-generic-lpae 4.4.0.141.147 linux-image-kvm 4.4.0.1039.38 linux-image-lowlatency 4.4.0.141.147 linux-image-powerpc-e500mc 4.4.0.141.147 linux-image-powerpc-smp 4.4.0.141.147 linux-image-powerpc64-emb 4.4.0.141.147 linux-image-powerpc64-smp 4.4.0.141.147 linux-image-raspi2 4.4.0.1102.102 linux-image-snapdragon 4.4.0.1106.98 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3848-1 CVE-2017-18174, CVE-2018-12896, CVE-2018-18690, CVE-2018-18710 Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-141.167 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1074.84 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1039.45 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1102.110 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1106.111 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3848-2 December 20, 2018 linux-lts-xenial, linux-aws vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty Details: USN-3848-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. It was discovered that a double free existed in the AMD GPIO driver in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-18174) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-4.4.0-1037-aws 4.4.0-1037.40 linux-image-4.4.0-141-generic 4.4.0-141.167~14.04.1 linux-image-4.4.0-141-generic-lpae 4.4.0-141.167~14.04.1 linux-image-4.4.0-141-lowlatency 4.4.0-141.167~14.04.1 linux-image-4.4.0-141-powerpc-e500mc 4.4.0-141.167~14.04.1 linux-image-4.4.0-141-powerpc-smp 4.4.0-141.167~14.04.1 linux-image-4.4.0-141-powerpc64-emb 4.4.0-141.167~14.04.1 linux-image-4.4.0-141-powerpc64-smp 4.4.0-141.167~14.04.1 linux-image-aws 4.4.0.1037.37 linux-image-generic-lpae-lts-xenial 4.4.0.141.121 linux-image-generic-lts-xenial 4.4.0.141.121 linux-image-lowlatency-lts-xenial 4.4.0.141.121 linux-image-powerpc-e500mc-lts-xenial 4.4.0.141.121 linux-image-powerpc-smp-lts-xenial 4.4.0.141.121 linux-image-powerpc64-emb-lts-xenial 4.4.0.141.121 linux-image-powerpc64-smp-lts-xenial 4.4.0.141.121 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3848-2 https://usn.ubuntu.com/usn/usn-3848-1 CVE-2017-18174, CVE-2018-12896, CVE-2018-18690, CVE-2018-18710 Package Information: https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1037.40 https://launchpad.net/ubuntu/+source/linux-lts-xenial/4.4.0-141.167~14.04.1 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3849-1 December 20, 2018 linux vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux: Linux kernel Details: It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-2647) It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734) It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276) Tetsuo Handa discovered a logic error in the TTY subsystem of the Linux kernel. A local attacker with access to pseudo terminal devices could use this to cause a denial of service. (CVE-2018-18386) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-3.13.0-164-generic 3.13.0-164.214 linux-image-3.13.0-164-generic-lpae 3.13.0-164.214 linux-image-3.13.0-164-lowlatency 3.13.0-164.214 linux-image-3.13.0-164-powerpc-e500 3.13.0-164.214 linux-image-3.13.0-164-powerpc-e500mc 3.13.0-164.214 linux-image-3.13.0-164-powerpc-smp 3.13.0-164.214 linux-image-3.13.0-164-powerpc64-emb 3.13.0-164.214 linux-image-3.13.0-164-powerpc64-smp 3.13.0-164.214 linux-image-generic 3.13.0.164.174 linux-image-generic-lpae 3.13.0.164.174 linux-image-lowlatency 3.13.0.164.174 linux-image-powerpc-e500 3.13.0.164.174 linux-image-powerpc-e500mc 3.13.0.164.174 linux-image-powerpc-smp 3.13.0.164.174 linux-image-powerpc64-emb 3.13.0.164.174 linux-image-powerpc64-smp 3.13.0.164.174 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3849-1 CVE-2017-2647, CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18386, CVE-2018-18690, CVE-2018-18710 Package Information: https://launchpad.net/ubuntu/+source/linux/3.13.0-164.214 - ------------------------------------------------------------------------------ ========================================================================== Ubuntu Security Notice USN-3849-2 December 20, 2018 linux-lts-trusty vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 12.04 ESM Summary: Several security issues were fixed in the Linux kernel. Software Description: - - linux-lts-trusty: Linux hardware enablement kernel from Trusty for Precise ESM Details: USN-3849-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. It was discovered that a NULL pointer dereference existed in the keyring subsystem of the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-2647) It was discovered that a race condition existed in the raw MIDI driver for the Linux kernel, leading to a double free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-10902) It was discovered that an integer overrun vulnerability existed in the POSIX timers implementation in the Linux kernel. A local attacker could use this to cause a denial of service. (CVE-2018-12896) Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash). (CVE-2018-14734) It was discovered that the YUREX USB device driver for the Linux kernel did not properly restrict user space reads or writes. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16276) Tetsuo Handa discovered a logic error in the TTY subsystem of the Linux kernel. A local attacker with access to pseudo terminal devices could use this to cause a denial of service. (CVE-2018-18386) Kanda Motohiro discovered that writing extended attributes to an XFS file system in the Linux kernel in certain situations could cause an error condition to occur. A local attacker could use this to cause a denial of service. (CVE-2018-18690) It was discovered that an integer overflow vulnerability existed in the CDROM driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2018-18710) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: linux-image-3.13.0-164-generic 3.13.0-164.214~precise1 linux-image-3.13.0-164-generic-lpae 3.13.0-164.214~precise1 linux-image-generic-lpae-lts-trusty 3.13.0.164.154 linux-image-generic-lts-trusty 3.13.0.164.154 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://usn.ubuntu.com/usn/usn-3849-2 https://usn.ubuntu.com/usn/usn-3849-1 CVE-2017-2647, CVE-2018-10902, CVE-2018-12896, CVE-2018-14734, CVE-2018-16276, CVE-2018-18386, CVE-2018-18690, CVE-2018-18710 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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