VMware Security Advisory 2011-0012 - VMware ESXi and ESX updates to third party libraries and ESX Service Console address several security issues.
7fd5e9259774393a258a0c189d667e06ba833c9fb8b0cd11fa8fb35727aecafaUbuntu Security Notice 1202-1 - Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. A local user could exploit this to read kernel stack memory, leading to a loss of privacy. Brad Spengler discovered that stack memory for new a process was not correctly calculated. A local attacker could exploit this to crash the system, leading to a denial of service. Dan Rosenberg discovered that the Linux kernel TIPC implementation contained multiple integer signedness errors. A local attacker could exploit this to gain root privileges. Various other issues were also addressed.
b470551b1de773c77d363adf5b0cb1910cc8654d0405c8a191ad8f00fd5d2535Red Hat Security Advisory 2011-0836-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. An integer underflow flaw, leading to a buffer overflow, was found in the Linux kernel's Datagram Congestion Control Protocol implementation. This could allow a remote attacker to cause a denial of service. Missing sanity checks were found in setup_arg_pages() in the Linux kernel. When making the size of the argument and environment area on the stack very large, it could trigger a BUG_ON(), resulting in a local denial of service. Various other issues were also addressed.
0bc7da28d7f8d01daaf031ade7ad82dbf57532847d920e10d5752b4f39600529Ubuntu Security Notice 1093-1 - Joel Becker discovered that OCFS2 did not correctly validate on-disk symlink structures. Ben Hutchings discovered that the ethtool interface did not correctly check certain sizes. Eric Dumazet discovered that many network functions could leak kernel stack contents. Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. A large number of additional vulnerabilities have also been address.
c0782ec52287eab8561329a78cec59713d72aef79fd6b9dd6d11304a47144159Ubuntu Security Notice 1072-1 - Multiple vulnerabilities have been discovered and addressed in the Linux kernel. Gleb Napatov discovered that KVM did not correctly check certain privileged operations. Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. Dan Rosenberg discovered that several network ioctls did not clear kernel memory correctly. Dan Jacobson discovered that ThinkPad video output was not correctly access controlled. Various other issues have also been addressed.
812b3e28ec2f6132fd1f95415c8a0227bd33b2de0533cab3591015f15aead3cbUbuntu Security Notice 1041-1 - Dan Rosenberg discovered that the btrfs filesystem did not correctly validate permissions when using the clone function. Dave Chinner discovered that the XFS filesystem did not correctly order inode lookups when exported by NFS. Kees Cook discovered that the Intel i915 graphics driver did not correctly validate memory regions. Various other issues have also been addressed.
ea26db62a4d97743642eaeed97eb665811c26eb91fe42e08a560cf013565d264Mandriva Linux Security Advisory 2010-257 - The setup_arg_pages function in fs/exec.c in the Linux kernel before 2.6.36, when CONFIG_STACK_GROWSDOWN is used, does not properly restrict the stack memory consumption of the environment for a 32-bit application on a 64-bit platform, which allows local users to cause a denial of service via a crafted exec system call, a related issue to CVE-2010-2240. drivers/media/video/v4l2-compat-ioctl32.c in the Video4Linux implementation in the Linux kernel before 2.6.36 on 64-bit platforms does not validate the destination of a memory copy operation, which allows local users to write to arbitrary kernel memory locations, and consequently gain privileges, via a VIDIOCSTUNER ioctl call on a /dev/video device, followed by a VIDIOCSMICROCODE ioctl call on this device. Various other issues have been addressed as well.
1e230666cbb1fc66c91156a8035fbdbdaca4fbe40c2a8ed95fd1ecd43722fa30Debian Linux Security Advisory 2126-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak.
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