Ubuntu Security Notice 1256-1 - It was discovered that the /proc filesystem did not correctly handle permission changes when programs executed. A local attacker could hold open files to examine details about programs running with higher privileges, potentially increasing the chances of exploiting additional vulnerabilities. Vasiliy Kulikov discovered that the Bluetooth stack did not correctly clear memory. A local attacker could exploit this to read kernel stack memory, leading to a loss of privacy. Various other issues were also addressed.
065ea3de04cbda6ba2f070db62f0f0ff03f73b678f1a9b1d73799d5e8bba15abUbuntu Security Notice 1241-1 - It was discovered that the Stream Control Transmission Protocol (SCTP) implementation incorrectly calculated lengths. If the net.sctp.addip_enable variable was turned on, a remote attacker could send specially crafted traffic to crash the system. Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. Various other issues were also addressed.
34637add57bb1c47bb725041cb1273223d64aa46133511754d889d306943b525Ubuntu Security Notice 1228-1 - Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service. Various other issues were also addressed.
7a796facfbdbd4810efed8d348e53d29c7acf6784437937e622860655741e4f6Ubuntu Security Notice 1227-1 - Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. Various other issues were also addressed.
87d2aaa8ca6ba6b00c9ca09b32765eba40fef19b74fb5429c7386a7141501ba4Ubuntu Security Notice 1225-1 - Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service. Various other issues were also addressed.
b1f7dfa9aac3262694f9d2d9d05907998c01f0a91e58587143172a3404102b77Ubuntu Security Notice 1220-1 - Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. Various other issues were also addressed.
381cb500bd82528a730aee301d5df2fea4835c168a78a002069bcb53da18ca72Ubuntu Security Notice 1219-1 - Ryan Sweat discovered that the kernel incorrectly handled certain VLAN packets. On some systems, a remote attacker could send specially crafted traffic to crash the system, leading to a denial of service. Timo Warns discovered that the EFI GUID partition table was not correctly parsed. A physically local attacker that could insert mountable devices could exploit this to crash the system or possibly gain root privileges. Various other issues were also addressed.
5bbf959fff7d5604adafb12f55e81da2ac28c246748613faaed45b3156c8add2Red Hat Security Advisory 2011-1253-01 - Updated kernel-rt packages that fix multiple security issues and various bugs are now available for Red Hat Enterprise MRG 2.0. The Red Hat Security Response Team has rated this update as having important security impact.
5d74eae8a478f1639bcefe4abf0a381df1d68b77824da152d114e20cc673b84aRed Hat Security Advisory 2011-1189-01 - Updated kernel packages that fix several security issues, various bugs, and add two enhancements are now available for Red Hat Enterprise Linux 6. Using PCI passthrough without interrupt remapping support allowed KVM guests to generate MSI interrupts and thus potentially inject traps. A privileged guest user could use this flaw to crash the host or possibly escalate their privileges on the host. The fix for this issue can prevent PCI passthrough working and guests starting. Flaw in the client-side NLM implementation could allow a local, unprivileged user to cause a denial of service.
d97ef6720ae8e063983b3824218d93b24db61be0bd9859deee9eb835fea7f6a9Red Hat Security Advisory 2011-0927-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. An integer overflow flaw in ib_uverbs_poll_cq() could allow a local, unprivileged user to cause a denial of service or escalate their privileges. A race condition in the way new InfiniBand connections were set up could allow a remote user to cause a denial of service. Various other issues were also addressed.
2d9ca2674edbb8a07bf22fdae27723bb5205d320cbb129bbd7e4361fe73cdc7bPRE-CERT Security Advisory - The Linux kernel contains a vulnerability that may lead to an information disclosure or a denial-of-service due to corrupted partition tables on storage devices. The kernel automatically evaluates partition tables of storage devices. The code for evaluating EFI GUID partition tables contains a buffer overflow bug that allows to leak data from the kernel heap to userspace or that may allow to cause a kernel oops resulting in a denial of service.
1f10331d92917440315f19d8592e62a5b1799c17bfff9f97e6fe3a68a516883d
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