USN-1244-1: Linux kernel (OMAP4) vulnerabilities
25 October 2011
Several security issues were fixed in the kernel.
Releases
Packages
- linux-ti-omap4 - Linux kernel for OMAP4
Details
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. (CVE-2010-3873)
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. (CVE-2011-2183)
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. (CVE-2011-2491)
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. (CVE-2011-2494)
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. (CVE-2011-2495)
It was discovered that the wireless stack incorrectly verified SSID
lengths. A local attacker could exploit this to cause a denial of service
or gain root privileges. (CVE-2011-2517)
It was discovered that the EXT4 filesystem contained multiple off-by-one
flaws. A local attacker could exploit this to crash the system, leading to
a denial of service. (CVE-2011-2695)
Christian Ohm discovered that the perf command looks for configuration
files in the current directory. If a privileged user were tricked into
running perf in a directory containing a malicious configuration file, an
attacker could run arbitrary commands and possibly gain privileges.
(CVE-2011-2905)
Vasiliy Kulikov discovered that the Comedi driver did not correctly clear
memory. A local attacker could exploit this to read kernel stack memory,
leading to a loss of privacy. (CVE-2011-2909)
Yogesh Sharma discovered that CIFS did not correctly handle UNCs that had
no prefixpaths. A local attacker with access to a CIFS partition could
exploit this to crash the system, leading to a denial of service.
(CVE-2011-3363)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.10
After a standard system update you need to reboot your computer to make
all the necessary changes.
Related notices
- USN-1073-1
- USN-1072-1
- USN-1164-1
- USN-1054-1
- USN-1071-1
- USN-1093-1
- USN-1272-1
- USN-1281-1
- USN-1285-1
- USN-1203-1
- USN-1279-1
- USN-1278-1
- USN-1218-1
- USN-1208-1
- USN-1216-1
- USN-1269-1
- USN-1286-1
- USN-1268-1
- USN-1274-1
- USN-1271-1
- USN-1294-1
- USN-1241-1
- USN-1243-1
- USN-1253-1
- USN-1239-1
- USN-1236-1
- USN-1275-1
- USN-1240-1
- USN-1260-1
- USN-1245-1
- USN-1242-1
- USN-1228-1
- USN-1246-1
- USN-1256-1
- USN-1168-1
- USN-1162-1
- USN-1167-1
- USN-1161-1
- USN-1159-1