========================================================================== Ubuntu Security Notice USN-3779-1 October 02, 2018 linux 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: Linux kernel Details: It was discovered that an integer overflow vulnerability existed in the Linux kernel when loading an executable to run. A local attacker could use this to gain administrative privileges. (CVE-2018-14634) It was discovered that a stack-based buffer overflow existed in the iSCSI target implementation of the Linux kernel. A remote attacker could use this to cause a denial of service (system crash). (CVE-2018-14633) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM: linux-image-3.2.0-136-generic 3.2.0-136.182 linux-image-3.2.0-136-generic-pae 3.2.0-136.182 linux-image-3.2.0-136-highbank 3.2.0-136.182 linux-image-3.2.0-136-omap 3.2.0-136.182 linux-image-3.2.0-136-powerpc-smp 3.2.0-136.182 linux-image-3.2.0-136-powerpc64-smp 3.2.0-136.182 linux-image-3.2.0-136-virtual 3.2.0-136.182 linux-image-generic 3.2.0.136.151 linux-image-generic-pae 3.2.0.136.151 linux-image-highbank 3.2.0.136.151 linux-image-omap 3.2.0.136.151 linux-image-powerpc 3.2.0.136.151 linux-image-powerpc-smp 3.2.0.136.151 linux-image-powerpc64-smp 3.2.0.136.151 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-3779-1 CVE-2018-14633, CVE-2018-14634