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[USN-715-1] Linux kernel vulnerabilities


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Date: Thu, 29 Jan 2009 18:21:49 -0800
From: Kees Cook <kees@ubuntu.com.>
To: [email protected]
Subject: [USN-715-1] Linux kernel vulnerabilities
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Ubuntu Security Notice USN-715-1 January 29, 2009 linux vulnerabilities CVE-2008-5079, CVE-2008-5182, CVE-2008-5300, CVE-2008-5395, CVE-2008-5700, CVE-2008-5702
A security issue affects the following Ubuntu releases: Ubuntu 8.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 8.10: linux-image-2.6.27-11-generic 2.6.27-11.27 linux-image-2.6.27-11-server 2.6.27-11.27 linux-image-2.6.27-11-virtual 2.6.27-11.27 After a standard system upgrade you need to reboot your computer to effect 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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well. Details follow: Hugo Dias discovered that the ATM subsystem did not correctly manage socket counts. A local attacker could exploit this to cause a system hang, leading to a denial of service. (CVE-2008-5079) It was discovered that the inotify subsystem contained watch removal race conditions. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2008-5182) Dann Frazier discovered that in certain situations sendmsg did not correctly release allocated memory. A local attacker could exploit this to force the system to run out of free memory, leading to a denial of service. (CVE-2008-5300) Helge Deller discovered that PA-RISC stack unwinding was not handled correctly. A local attacker could exploit this to crash the system, leading do a denial of service. This did not affect official Ubuntu kernels, but was fixed in the source for anyone performing HPPA kernel builds. (CVE-2008-5395) It was discovered that the ATA subsystem did not correctly set timeouts. A local attacker could exploit this to cause a system hang, leading to a denial of service. (CVE-2008-5700) It was discovered that the ib700 watchdog timer did not correctly check buffer sizes. A local attacker could send a specially crafted ioctl to the device to cause a system crash, leading to a denial of service. (CVE-2008-5702) Updated packages for Ubuntu 8.10: Source archives: http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux_2.6.27-11.27.diff.gz Size/MD5: 3045315 319b70724933690ebeaf2570c08e5872 http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux_2.6.27-11.27.dsc Size/MD5: 1529 1f0ca8782583778c06befbe486a5537c http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux_2.6.27.orig.tar.gz Size/MD5: 63721466 482b04f680ce6676114ccfaaf8f66a55 Architecture independent packages: http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-doc-2.6.27_2.6.27-11.27_all.deb Size/MD5: 3480820 102ffe69d583daaea25e9dc16624cf1d http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-headers-2.6.27-11_2.6.27-11.27_all.deb Size/MD5: 5782904 b7de142c5ded4e2e26037799b045b17d http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-source-2.6.27_2.6.27-11.27_all.deb Size/MD5: 52041978 3eb25260c3bf95d7110174a153457fe4 amd64 architecture (Athlon64, Opteron, EM64T Xeon): http://security.ubuntu.com/ubuntu/pool/main/l/linux/acpi-modules-2.6.27-11-generic-di_2.6.27-11.27_amd64.udeb Size/MD5: 36522 9e9b81519f796f9c8d970e369e6235b9 http://security.ubuntu.com/ubuntu/pool/main/l/linux/block-modules-2.6.27-11-generic-di_2.6.27-11.27_amd64.udeb Size/MD5: 264132 781d177036c0d1f8d04fca8fd1322ad4 http://security.ubuntu.com/ubuntu/pool/main/l/linux/crypto-modules-2.6.27-11-generic-di_2.6.27-11.27_amd64.udeb Size/MD5: 53470 8e367a9fbbb2aea106db18724fbd78e8 http://security.ubuntu.com/ubuntu/pool/main/l/linux/fat-modules-2.6.27-11-generic-di_2.6.27-11.27_amd64.udeb Size/MD5: 43124 32bb76a5c82cf4787e015a8d14a78b96 http://security.ubuntu.com/ubuntu/pool/main/l/linux/fb-modules-2.6.27-11-generic-di_2.6.27-11.27_amd64.udeb Size/MD5: 52340 46d233691c5842fa9f7347216eba0ce1 http://security.ubuntu.com/ubuntu/pool/main/l/linux/firewire-core-modules-2.6.27-11-generic-di_2.6.27-11.27_amd64.udeb Size/MD5: 89726 a8ac9ef887eacc31ebc322cf37223aec 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