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View Full Version : USN-508-1: Linux kernel vulnerabilities



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August 31st, 2007, 06:50 AM
Referenced CVEs:
CVE-2005-0504, CVE-2007-2242, CVE-2007-3104, CVE-2007-3105, CVE-2007-3848, CVE-2007-4308


Description:
================================================== ========= Ubuntu Security Notice USN-508-1 August 31, 2007 linux-source-2.6.15 vulnerabilities CVE-2005-0504, CVE-2007-2242, CVE-2007-3104, CVE-2007-3105, CVE-2007-3848, CVE-2007-4308 ================================================== ========= A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS 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 6.06 LTS: linux-image-2.6.15-29-386 2.6.15-29.58 linux-image-2.6.15-29-686 2.6.15-29.58 linux-image-2.6.15-29-amd64-generic 2.6.15-29.58 linux-image-2.6.15-29-amd64-k8 2.6.15-29.58 linux-image-2.6.15-29-amd64-server 2.6.15-29.58 linux-image-2.6.15-29-amd64-xeon 2.6.15-29.58 linux-image-2.6.15-29-hppa32 2.6.15-29.58 linux-image-2.6.15-29-hppa32-smp 2.6.15-29.58 linux-image-2.6.15-29-hppa64 2.6.15-29.58 linux-image-2.6.15-29-hppa64-smp 2.6.15-29.58 linux-image-2.6.15-29-itanium 2.6.15-29.58 linux-image-2.6.15-29-itanium-smp 2.6.15-29.58 linux-image-2.6.15-29-k7 2.6.15-29.58 linux-image-2.6.15-29-mckinley 2.6.15-29.58 linux-image-2.6.15-29-mckinley-smp 2.6.15-29.58 linux-image-2.6.15-29-powerpc 2.6.15-29.58 linux-image-2.6.15-29-powerpc-smp 2.6.15-29.58 linux-image-2.6.15-29-powerpc64-smp 2.6.15-29.58 linux-image-2.6.15-29-server 2.6.15-29.58 linux-image-2.6.15-29-server-bigiron 2.6.15-29.58 linux-image-2.6.15-29-sparc64 2.6.15-29.58 linux-image-2.6.15-29-sparc64-smp 2.6.15-29.58 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-386, linux-powerpc, linux-amd64-generic), a standard system upgrade will automatically perform this as well. Details follow: A buffer overflow was discovered in the Moxa serial driver. Local attackers could execute arbitrary code and gain root privileges. (CVE-2005-0504) A flaw was discovered in the IPv6 stack's handling of type 0 route headers. By sending a specially crafted IPv6 packet, a remote attacker could cause a denial of service between two IPv6 hosts. (CVE-2007-2242) A flaw in the sysfs_readdir function allowed a local user to cause a denial of service by dereferencing a NULL pointer. (CVE-2007-3104) A buffer overflow was discovered in the random number generator. In environments with granular assignment of root privileges, a local attacker could gain additional privileges. (CVE-2007-3105) It was discovered that certain setuid-root processes did not correctly reset process death signal handlers. A local user could manipulate this to send signals to processes they would not normally have access to. (CVE-2007-3848) It was discovered that the aacraid SCSI driver did not correctly check permissions on certain ioctls. A local attacker could cause a denial of service or gain privileges. (CVE-2007-4308)





More... (http://www.ubuntu.com/usn/usn-508-1)