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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0998 Important: kernel-rt security and bug fix update 27 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Red Hat Enterprise MRG Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-12931 CVE-2018-12930 CVE-2018-12929 CVE-2018-10902 CVE-2018-5803 CVE-2017-7482 Reference: ESB-2018.3377 ESB-2018.3374 ESB-2018.3373 ESB-2018.1797 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:0641 - --------------------------BEGIN INCLUDED TEXT-------------------- ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2019:0641-01 Product: Red Hat Enterprise MRG for RHEL-6 Advisory URL: https://access.redhat.com/errata/RHSA-2019:0641 Issue date: 2019-03-26 CVE Names: CVE-2017-7482 CVE-2018-5803 CVE-2018-10902 CVE-2018-12929 CVE-2018-12930 CVE-2018-12931 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: MIDI driver race condition leads to a double-free (CVE-2018-10902) * kernel: net/rxrpc: overflow in decoding of krb5 principal (CVE-2017-7482) * kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service (CVE-2018-5803) * kernel: use-after-free in ntfs_read_locked_inode in the ntfs.ko (CVE-2018-12929) * kernel: stack-based out-of-bounds write in ntfs_end_buffer_async_read in the ntfs.ko (CVE-2018-12930) * kernel: stack-based out-of-bounds write in ntfs_attr_find in the ntfs.ko (CVE-2018-12931) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * Remove the NTFS module from the MRG 2.5.x realtime kernel (BZ#1674523) * update the MRG 2.5.z 3.10 kernel-rt sources (BZ#1674935) Users of kernel-rt are advised to upgrade to these updated packages, which fix these bugs. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1446288 - CVE-2017-7482 kernel: net/rxrpc: overflow in decoding of krb5 principal 1551051 - CVE-2018-5803 kernel: Missing length check of payload in net/sctp/sm_make_chunk.c:_sctp_make_chunk() function allows denial of service 1590720 - CVE-2018-10902 kernel: MIDI driver race condition leads to a double-free 1597831 - CVE-2018-12929 kernel: use-after-free in ntfs_read_locked_inode in the ntfs.ko 1597837 - CVE-2018-12930 kernel: stack-based out-of-bounds write in ntfs_end_buffer_async_read in the ntfs.ko 1597843 - CVE-2018-12931 kernel: stack-based out-of-bounds write in ntfs_attr_find in the ntfs.ko 1674935 - update the MRG 2.5.z 3.10 kernel-rt sources 6. Package List: Red Hat MRG Realtime for RHEL 6 Server v.2: Source: kernel-rt-3.10.0-693.46.1.rt56.639.el6rt.src.rpm noarch: kernel-rt-doc-3.10.0-693.46.1.rt56.639.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.46.1.rt56.639.el6rt.noarch.rpm x86_64: kernel-rt-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.46.1.rt56.639.el6rt.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-7482 https://access.redhat.com/security/cve/CVE-2018-5803 https://access.redhat.com/security/cve/CVE-2018-10902 https://access.redhat.com/security/cve/CVE-2018-12929 https://access.redhat.com/security/cve/CVE-2018-12930 https://access.redhat.com/security/cve/CVE-2018-12931 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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