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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1727 Linux kernel vulnerabilities 12 June 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-8781 CVE-2018-7492 CVE-2018-1068 CVE-2017-0627 Reference: ESB-2018.1576 ESB-2018.1549 ESB-2018.1458 ESB-2018.0962 ESB-2018.0923 ESB-2018.0844 Original Bulletin: http://www.ubuntu.com/usn/usn-3674-1 http://www.ubuntu.com/usn/usn-3674-2 Comment: This bulletin contains two (2) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3674-1 June 11, 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 the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068) It was discovered that a NULL pointer dereference existed in the RDS (Reliable Datagram Sockets) protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-7492) Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781) Xingyuan Lin discovered that a out-of-bounds read existed in the USB Video Class (UVC) driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-0627) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: linux-image-3.13.0-151-generic 3.13.0-151.201 linux-image-3.13.0-151-generic-lpae 3.13.0-151.201 linux-image-3.13.0-151-lowlatency 3.13.0-151.201 linux-image-3.13.0-151-powerpc-e500 3.13.0-151.201 linux-image-3.13.0-151-powerpc-e500mc 3.13.0-151.201 linux-image-3.13.0-151-powerpc-smp 3.13.0-151.201 linux-image-3.13.0-151-powerpc64-emb 3.13.0-151.201 linux-image-3.13.0-151-powerpc64-smp 3.13.0-151.201 linux-image-generic 3.13.0.151.161 linux-image-generic-lpae 3.13.0.151.161 linux-image-lowlatency 3.13.0.151.161 linux-image-powerpc-e500 3.13.0.151.161 linux-image-powerpc-e500mc 3.13.0.151.161 linux-image-powerpc-smp 3.13.0.151.161 linux-image-powerpc64-emb 3.13.0.151.161 linux-image-powerpc64-smp 3.13.0.151.161 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-3674-1 CVE-2017-0627, CVE-2018-1068, CVE-2018-7492, CVE-2018-8781 Package Information: https://launchpad.net/ubuntu/+source/linux/3.13.0-151.201 - ------------------------------------------------------------------------------- ========================================================================== Ubuntu Security Notice USN-3674-2 June 11, 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-3674-1 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 the netfilter subsystem of the Linux kernel did not properly validate ebtables offsets. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-1068) It was discovered that a NULL pointer dereference existed in the RDS (Reliable Datagram Sockets) protocol implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2018-7492) Eyal Itkin discovered that the USB displaylink video adapter driver in the Linux kernel did not properly validate mmap offsets sent from userspace. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code. (CVE-2018-8781) Xingyuan Lin discovered that a out-of-bounds read existed in the USB Video Class (UVC) driver of the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-0627) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: linux-image-3.13.0-151-generic 3.13.0-151.201~precise1 linux-image-3.13.0-151-generic-lpae 3.13.0-151.201~precise1 linux-image-generic-lpae-lts-trusty 3.13.0.151.142 linux-image-generic-lts-trusty 3.13.0.151.142 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-3674-2 https://usn.ubuntu.com/usn/usn-3674-1 CVE-2017-0627, CVE-2018-1068, CVE-2018-7492, CVE-2018-8781 - --------------------------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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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 iQIVAwUBWx8QT2aOgq3Tt24GAQipZg//ceDo60lRz1ZW1grfdoPRn892TmpYjy4D 3X40cuj/LH7A033zkUduGUsVOvikmEvG3KHsP4vVnrQ/HiDXIfAhemBNgK8t1XHp fhLPFnHTvDLLS+jv4viF5UC0bKglMJNsB4kuuT80liyra3kcZSmqWe6Ou6VrCwTk mxhQd63B1Sz5WDyfa0M6zA1NY9rQPprX5lO3zF3Qq9+A6aZbApcsaL4y/5bnCP6k +etMZM7Q4DpatUkeVBzmNyyG7AE3TjtRbRJwSyDxj+F+0IBGc0uaR1PzesxDiXQ4 c32wRU0Vi8TyIvky6J+Jzhbyy8Ht36Z6mOLsBL+iTr5i/nCcQGmMx77sm2VfFaqO ENuSRboxSd17mcTnqOVb6xtZTyKi/SjQASx4yHVkLkxYFrq4y2VibdtJBu5OL/js sqVqIERb/+4tDZ887eqHb7OKPhp+7+HZIJhxso7E+Dt1B6IBBSz4Bd5zG9jAfPJ0 NP9/KBPve4ewtsaH0jPQKcFjrb4+s1YD1Z9xXShm5NPkmU6spvwfhR7hdj4o3vGd g2rncmac+l8tfdlqdICkaHXrg+zk+oLVv9MdjmzaJ9eIv8lRciqjjEgkMV4cF8Sl ZVdTStgbYyMuE3jAN3Onq6FcGLGZXZJFkJ2G70HtHh0L14hhY6z6svq338cwvshi 6d3smFjJM+o= =terp -----END PGP SIGNATURE-----