Red Hat Security Advisory 2011-1813-01 - Updated kernel packages that fix several security issues and various bugs are now available for Red Hat Enterprise Linux 5.6 Extended Update Support.
3b16278bac583a2c1428428c3ee68d41f050c60bf38ba7270277894b824802f2Ubuntu Security Notice 1285-1 - Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Various other issues were also addressed.
6758df4905be75681d391dbdf0a22a6c0d585b02d7ae0b95ce6c9f405177ab7dUbuntu Security Notice 1281-1 - Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. It was discovered that an mmap() call with the MAP_PRIVATE flag on "/dev/zero" was incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Various other issues were also addressed.
872fb0971665c7f419fc03b97528a458416b56407dc592de5dc20aa1368746faUbuntu Security Notice 1279-1 - Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Various other issues were also addressed.
a57a6a4677aad213b5b06f27421d5abb8eefa70db03930de1545039b4bd62c37Ubuntu Security Notice 1253-1 - 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. Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. Various other issues were also addressed.
500dc3b4a945636f97bf2e47879fe76c35bb56044546ce1c830a4bcfd79e5365Ubuntu Security Notice 1245-1 - 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. Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. Various other issues were also addressed.
6c2fdc6fb88de2201319a3a2c820b9ee501477683f43a26fc633346bfd7e0794Ubuntu Security Notice 1244-1 - Dan Rosenberg discovered that the Linux kernel X.25 implementation incorrectly parsed facilities. A remote attacker could exploit this to crash the kernel, leading to a denial of service. Andrea Righi discovered a race condition in the KSM memory merging support. If KSM was being used, a local attacker could exploit this to crash the system, leading to a denial of service. Vasily Averin discovered that the NFS Lock Manager (NLM) incorrectly handled unlock requests. A local attacker could exploit this to cause a denial of service. Various other issues were also addressed.
e4754fa6724234d333d49b5c5ae6f7479b66f52067e7648702db16544a280bcdUbuntu Security Notice 1243-1 - It was discovered that the security fix for CVE-2010-4250 introduced a regression. A remote attacker could exploit this to crash the system, leading to a denial of service. Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Various other issues were also addressed.
17f248b3931a988aad14812534c1789db9fb19d3669e1520b000fb81fd5b0df9Ubuntu Security Notice 1242-1 - It was discovered that the security fix for CVE-2010-4250 introduced a regression. A remote attacker could exploit this to crash the system, leading to a denial of service. Vasiliy Kulikov discovered that taskstats did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Vasiliy Kulikov discovered that /proc/PID/io did not enforce access restrictions. A local attacker could exploit this to read certain information, leading to a loss of privacy. Various other issues were also addressed.
544731c1bb12667fa7a9b5b5b16ac0871a169440d284556042daf2acc1e9a8f4Ubuntu 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 1240-1 - 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. Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. Various other issues were also addressed.
7bb5696fdf28788ddf1a181d26c0746a318f35d21e90975dc7a17a6248fbbf34Ubuntu Security Notice 1239-1 - 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. Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not correctly check the origin of mount points. A local attacker could exploit this to trick the system into unmounting arbitrary mount points, leading to a denial of service. Various other issues were also addressed.
a8d44e1d2d7d40338fc3f73c81b91d2690ae35010e30a9837bab689992f33bd1Ubuntu Security Notice 1236-1 - It was discovered that the Auerswald usb driver incorrectly handled lengths of the USB string descriptors. A local attacker with physical access could insert a specially crafted USB device and gain root privileges. 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. Various other issues were also addressed.
b0bddf24cb995158c0eba5cfbdda2ed4a77f0705cd513bca55d2c0b412b0ac28Debian Linux Security Advisory 2310-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leak.
0ade6375df4fb18e4bf4cc0f6541e056556cbe078ca3ef9db083dea13e260836Debian Linux Security Advisory 2303-2 - The linux-2.6 and user-mode-linux upgrades from DSA-2303-1 has caused a regression that can result in an oops during invalid accesses to /proc/<pid>/maps files.
5e72a6c97cffe3e5d4480641de2e9dd75b8941004f9b3efb715136b76b23e635Debian Linux Security Advisory 2303-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation.
72d50088cc453629042c1d2a8fe39ec8d1f2442c069a5c04c5bf02d848669ad6Red Hat Security Advisory 2011-1212-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A NULL pointer dereference flaw was found in the Linux kernel's Stream Control Transmission Protocol implementation. A remote attacker could send a specially-crafted SCTP packet to a target system, resulting in a denial of service. A flaw in the Linux kernel's client-side NFS Lock Manager implementation could allow a local, unprivileged user to cause a denial of service.
9c2edb7d23d2cfd9d86f0a74a4081f4a0dd2945dee2ad9e4a1c6c515861935c7Red 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.
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