========================================================================== Ubuntu Security Notice USN-3128-1 November 11, 2016 linux vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 LTS Summary: The system could be made to crash under certain conditions. Software Description: - linux: Linux kernel Details: Ondrej Kozina discovered that the keyring interface in the Linux kernel contained a buffer overflow when displaying timeout events via the /proc/keys interface. A local attacker could use this to cause a denial of service (system crash). Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS: linux-image-4.4.0-47-generic 4.4.0-47.68 linux-image-4.4.0-47-generic-lpae 4.4.0-47.68 linux-image-4.4.0-47-lowlatency 4.4.0-47.68 linux-image-4.4.0-47-powerpc-e500mc 4.4.0-47.68 linux-image-4.4.0-47-powerpc-smp 4.4.0-47.68 linux-image-4.4.0-47-powerpc64-emb 4.4.0-47.68 linux-image-4.4.0-47-powerpc64-smp 4.4.0-47.68 linux-image-generic 4.4.0.47.50 linux-image-generic-lpae 4.4.0.47.50 linux-image-lowlatency 4.4.0.47.50 linux-image-powerpc-e500mc 4.4.0.47.50 linux-image-powerpc-smp 4.4.0.47.50 linux-image-powerpc64-emb 4.4.0.47.50 linux-image-powerpc64-smp 4.4.0.47.50 linux-image-virtual 4.4.0.47.50 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: http://www.ubuntu.com/usn/usn-3128-1 CVE-2016-7042 Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-47.68 --cVp8NMj01v+Em8Se -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBCgAGBQJYJZJEAAoJEC8Jno0AXoH0m78P/RiCgjlTTeap77zBJaPX1xEu z9po0fF1hDD1lNuz45JSAp2gENfJJvOZugk0a/0cj4cMw05KBh6mfn4dFEX62gPg ciSTsEiG7dj2h0ilLoo8pUD7+5DldGU9DAUiaPsyeGvHE0NXxxmE+c6e+QYPHAFm JQinPrncc+8mThHZdmYkwe4XgLRQ0STGddP40hQHnt/nNpT0tOwnBSs5tl3U9P+a crOfUdjASK39V/JXmp6tuIkIVRS0ahqUrI875qZkV1Tb8Jth/hx/wdFIcP7XwNzP JcFoEo9ISsO0FJ/Ycm6qRmlfMZPZF6N3EDKqC78o354itPm0EG/yymobilZldm5f 1ulXVbye1jr5V0JTffATpAsA8qgC4fL3yBddOs8TzBWPqmzFBMyugL2h0C6xJMBD vG/3lVYKNqa2A7NGwII7XU6H7fvQQgeu1w1NTjP4JqPZ9GJG4M34RP7ion4aYga0 MhAnoql1zqfvn1QFv3PfRTsg3NCGogYaO3YFPG5LFJn2hBM2jJCua5WmW99YgNDa ZftH/K8Mm5Y5E8qX5TDWkaFzeTEqK9XzivL76oPsXhkdZU6f5IWOuLxJXa8NUDnH qH0HZoEIIHBRuySp0p7V5LZcl790m4SVYzUgCLCp5eMv2Y+zHNq+YXoQfqIMrK2J 9cPSuBCBIXGSOg8kIgbr =hWr0 -----END PGP SIGNATURE----- --cVp8NMj01v+Em8Se--