=========================================================== Ubuntu Security Notice USN-451-1 April 10, 2007 linux-source-2.6.15/2.6.17 vulnerabilities CVE-2007-0006, CVE-2007-0772, CVE-2007-0958 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 6.10 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 6.06 LTS: linux-image-2.6.15-28-386 2.6.15-28.53 linux-image-2.6.15-28-686 2.6.15-28.53 linux-image-2.6.15-28-amd64-generic 2.6.15-28.53 linux-image-2.6.15-28-amd64-k8 2.6.15-28.53 linux-image-2.6.15-28-amd64-server 2.6.15-28.53 linux-image-2.6.15-28-amd64-xeon 2.6.15-28.53 linux-image-2.6.15-28-k7 2.6.15-28.53 linux-image-2.6.15-28-powerpc 2.6.15-28.53 linux-image-2.6.15-28-powerpc-smp 2.6.15-28.53 linux-image-2.6.15-28-powerpc64-smp 2.6.15-28.53 linux-image-2.6.15-28-server 2.6.15-28.53 linux-image-2.6.15-28-server-bigiron 2.6.15-28.53 linux-image-2.6.15-28-sparc64 2.6.15-28.53 linux-image-2.6.15-28-sparc64-smp 2.6.15-28.53 Ubuntu 6.10: linux-image-2.6.17-11-386 2.6.17.1-11.37 linux-image-2.6.17-11-generic 2.6.17.1-11.37 linux-image-2.6.17-11-powerpc 2.6.17.1-11.37 linux-image-2.6.17-11-powerpc-smp 2.6.17.1-11.37 linux-image-2.6.17-11-powerpc64-smp 2.6.17.1-11.37 linux-image-2.6.17-11-server 2.6.17.1-11.37 linux-image-2.6.17-11-server-bigiron 2.6.17.1-11.37 linux-image-2.6.17-11-sparc64 2.6.17.1-11.37 linux-image-2.6.17-11-sparc64-smp 2.6.17.1-11.37 After a standard system upgrade you need to reboot your computer to effect the necessary changes. Details follow: The kernel key management code did not correctly handle key reuse. A local attacker could create many key requests, leading to a denial of service. (CVE-2007-0006) The kernel NFS code did not correctly validate NFSACL2 ACCESS requests. If a system was serving NFS mounts, a remote attacker could send a specially crafted packet, leading to a denial of service. (CVE-2007-0772) When dumping core, the kernel did not correctly handle PT_INTERP processes. A local attacker could create situations where they could read the contents of otherwise unreadable executable programs. (CVE-2007-0958)