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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0791.2 USN-3908: Linux kernel vulnerability 15 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Linux kernel Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-6133 Reference: ESB-2019.0716 ESB-2019.0691 ESB-2019.0609 ESB-2019.0291 Original Bulletin: https://usn.ubuntu.com/3908-1/ https://usn.ubuntu.com/3908-2/ Comment: This bulletin contains two (2) Ubuntu security advisories. Revision History: March 15 2019: Added USN-3908-2 for 12.04 ESM March 13 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3908-1: Linux kernel vulnerability 12 March 2019 linux vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 14.04 LTS Summary The system could be made to run programs as an administrator. Software Description o linux - Linux kernel Details Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS linux-image-3.13.0-166-generic - 3.13.0-166.216 linux-image-3.13.0-166-generic-lpae - 3.13.0-166.216 linux-image-3.13.0-166-lowlatency - 3.13.0-166.216 linux-image-3.13.0-166-powerpc-e500 - 3.13.0-166.216 linux-image-3.13.0-166-powerpc-e500mc - 3.13.0-166.216 linux-image-3.13.0-166-powerpc-smp - 3.13.0-166.216 linux-image-3.13.0-166-powerpc64-emb - 3.13.0-166.216 linux-image-3.13.0-166-powerpc64-smp - 3.13.0-166.216 linux-image-generic - 3.13.0.166.177 linux-image-generic-lpae - 3.13.0.166.177 linux-image-lowlatency - 3.13.0.166.177 linux-image-powerpc-e500 - 3.13.0.166.177 linux-image-powerpc-e500mc - 3.13.0.166.177 linux-image-powerpc-smp - 3.13.0.166.177 linux-image-powerpc64-emb - 3.13.0.166.177 linux-image-powerpc64-smp - 3.13.0.166.177 linux-image-virtual - 3.13.0.166.177 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . 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 o CVE-2019-6133 - -------------------------------------------------------------------------------- USN-3908-2: Linux kernel (Trusty HWE) vulnerability 13 March 2019 linux-lts-trusty vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 12.04 ESM Summary The system could be made to run programs as an administrator. Software Description o linux-lts-trusty - Linux hardware enablement kernel from Trusty for Precise ESM Details USN-3908-1 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. Jann Horn discovered a race condition in the fork() system call in the Linux kernel. A local attacker could use this to gain access to services that cache authorizations. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM linux-image-3.13.0-166-generic - 3.13.0-166.216~precise1 linux-image-3.13.0-166-generic-lpae - 3.13.0-166.216~precise1 linux-image-3.13.0-166-lowlatency - 3.13.0-166.216~precise1 linux-image-generic-lpae-lts-trusty - 3.13.0.166.156 linux-image-generic-lts-trusty - 3.13.0.166.156 - --------------------------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. 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Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXIq5YmaOgq3Tt24GAQhQmxAAixb3Oy0b4S3ffBqvAiKUNzhyTzCNxHNr DawZmlunqK6/fE+32VclvmzvRhtYSajerejlQauQyc1+MKheCYc+3bkfhEe3fI/L IuUdnj8h7lAkDDGVKlE5HdVc9Jv17un9FBVDpxZXVfnXBt1rbmThUVueMmZbch+n 1cglN/KPFJsAvvWJ1C86VTpBcBWnsORZvk3uEn8hStuuAZTyfAEbXaIw9nux+dww 6eQ+SyH+Nvlo1DKG4q9anc6sumRaMmYteVAENE+jvIjt6sfmihJ7oNB7GscwFE24 2Np56OoSxHevuiAT6ls9xh8YylEFm1T7xPH8SyWG9JR99TVGhz+Jb5EV0SZH6at4 hHI/4+5oSmYeaqACSN1FXKiZ6XbFYCCv3ToFytkbRCHrd7YfHd+VZ8/QTDWDNZel dkmFBjbT6kGuQaeghDknKNSLDD/6PLjxXOPmSVfkwjlaM4+wP5uRH3nmDlnRQ/e8 08NLDpfDNQCfTCHUpMHbEqMpa51rJdvuOZrX+G5BKtpyMytOX+k947wBXHa4/OVP e6X08AySv3fWcXpFZvDJhlCgvjCgk6Da3dI3U8x/fVdRJaAMUXtogpU+nODllDkb p3GmXO42jMDNQy5rZlEQBkRZoRNDW8OCnkDK2S2XhrqwWXaJDqO/tSESCTSIlabI /yh+rHFz5Go= =sTeQ -----END PGP SIGNATURE-----