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CVE-2012-6542

Status Candidate

Overview

The llc_ui_getname function in net/llc/af_llc.c in the Linux kernel before 3.6 has an incorrect return value in certain circumstances, which allows local users to obtain sensitive information from kernel stack memory via a crafted application that leverages an uninitialized pointer argument.

Related Files

Red Hat Security Advisory 2013-1645-02
Posted Nov 21, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-1645-02 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.

tags | advisory, remote, kernel, udp
systems | linux, redhat
advisories | CVE-2012-6542, CVE-2012-6545, CVE-2013-0343, CVE-2013-1928, CVE-2013-1929, CVE-2013-2164, CVE-2013-2234, CVE-2013-2851, CVE-2013-2888, CVE-2013-2889, CVE-2013-2892, CVE-2013-3231, CVE-2013-4345, CVE-2013-4387, CVE-2013-4591, CVE-2013-4592
SHA-256 | 97d65ec407c60f5d7fb845675304c446d1888daf065dc7d8976e4e16c33033ab
Debian Security Advisory 2668-1
Posted May 15, 2013
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2668-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leak or privilege escalation.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2012-2121, CVE-2012-3552, CVE-2012-4461, CVE-2012-4508, CVE-2012-6537, CVE-2012-6539, CVE-2012-6540, CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2012-6549, CVE-2013-0349, CVE-2013-0914, CVE-2013-1767, CVE-2013-1773, CVE-2013-1774, CVE-2013-1792, CVE-2013-1796, CVE-2013-1798, CVE-2013-1826, CVE-2013-1860, CVE-2013-1928, CVE-2013-1929, CVE-2013-2015, CVE-2013-2634, CVE-2013-3222
SHA-256 | f66b5875b109e5f665558463b3f9c59ae0cb8985c108bda014534f43c51d2b5f
Ubuntu Security Notice USN-1808-1
Posted Apr 25, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1808-1 - Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer (llc) sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. Mathias Krause discovered information leaks in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) implementation. A local user could exploit these flaws to examine some of the kernel's stack memory. Various other issues were also addressed.

tags | advisory, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796, CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796
SHA-256 | 552454cec345ffb0bddff287d7b438a2d118cde30da3628cf3b2484c337e4199
Ubuntu Security Notice USN-1805-1
Posted Apr 19, 2013
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1805-1 - Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer (llc) sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. Mathias Krause discovered information leaks in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) implementation. A local user could exploit these flaws to examine some of the kernel's stack memory. Various other issues were also addressed.

tags | advisory, kernel, local, protocol
systems | linux, ubuntu
advisories | CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796, CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546, CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774, CVE-2013-1796
SHA-256 | f8ed7e9055b2ef3f668acf428f2af9356368d82637507c163b57ec94d86ab878
Red Hat Security Advisory 2013-0747-01
Posted Apr 16, 2013
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2013-0747-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the Xen netback driver implementation in the Linux kernel. A privileged guest user with access to a para-virtualized network device could use this flaw to cause a long loop in netback, leading to a denial of service that could potentially affect the entire system.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2012-6537, CVE-2012-6542, CVE-2012-6546, CVE-2012-6547, CVE-2013-0216, CVE-2013-0231, CVE-2013-1826
SHA-256 | 9e0aa536e0da762edf8c498c10bb83405607592006ca6d9a7c71cb4b1a98321e
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