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CVE-2011-4087

Status Candidate

Overview

The br_parse_ip_options function in net/bridge/br_netfilter.c in the Linux kernel before 2.6.39 does not properly initialize a certain data structure, which allows remote attackers to cause a denial of service by leveraging connectivity to a network interface that uses an Ethernet bridge device.

Related Files

Ubuntu Security Notice USN-1304-1
Posted Dec 13, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1304-1 - A bug was discovered in the XFS filesystem's handling of pathnames. A local attacker could exploit this to crash the system, leading to a denial of service, or gain root privileges. Nick Bowler discovered the kernel GHASH message digest algorithm incorrectly handled error conditions. A local attacker could exploit this to cause a kernel oops. Scot Doyle discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, kernel, local, root
systems | linux, ubuntu
advisories | CVE-2011-4077, CVE-2011-4081, CVE-2011-4087, CVE-2011-4132, CVE-2011-4326, CVE-2011-4330
SHA-256 | 6d2a20967eadf3aba427c6e36f59f62b119e6c705633091d9326357f7fb00aec
Ubuntu Security Notice USN-1294-1
Posted Dec 8, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1294-1 - Peter Huewe discovered an information leak in the handling of reading security-related TPM data. A local, unprivileged user could read the results of a previous TPM command. 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. Qianfeng Zhang discovered that the bridge networking interface incorrectly handled certain network packets. A remote attacker could exploit this to crash the system, leading to a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, local
systems | linux, ubuntu
advisories | CVE-2011-1162, CVE-2011-2494, CVE-2011-2942, CVE-2011-3209, CVE-2011-3638, CVE-2011-4081, CVE-2011-4087, CVE-2011-4326
SHA-256 | acab8d51e69e89ac69916bfde79578d48d20a5c740ed8334923ba6a32afe7023
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