USN-1281-1: Linux (OMAP4) vulnerabilities
First published: Thu Nov 24 2011(Updated: )
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) 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. (CVE-2011-2479) 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) Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. (CVE-2011-2496) 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) 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)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-2.6.38-1209-omap4 | <2.6.38-1209.17 | 2.6.38-1209.17 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2011-2479
- https://ubuntu.com/security/CVE-2011-2183
- https://ubuntu.com/security/CVE-2011-2491
- https://ubuntu.com/security/CVE-2011-2494
- https://ubuntu.com/security/CVE-2011-2495
- https://ubuntu.com/security/CVE-2011-2496
- https://ubuntu.com/security/CVE-2011-2517
- https://ubuntu.com/security/CVE-2011-2905
- https://ubuntu.com/security/CVE-2011-2909
- https://ubuntu.com/security/CVE-2011-3363
- https://ubuntu.com/security/notices/USN-1167-1
- https://ubuntu.com/security/notices/USN-1256-1
- https://ubuntu.com/security/notices/USN-1272-1
- https://ubuntu.com/security/notices/USN-1285-1
- https://ubuntu.com/security/notices/USN-1203-1
- https://ubuntu.com/security/notices/USN-1279-1
- https://ubuntu.com/security/notices/USN-1278-1
- https://ubuntu.com/security/notices/USN-1218-1
- https://ubuntu.com/security/notices/USN-1244-1
- https://ubuntu.com/security/notices/USN-1208-1
- https://ubuntu.com/security/notices/USN-1216-1
- https://ubuntu.com/security/notices/USN-1269-1
- https://ubuntu.com/security/notices/USN-1286-1
- https://ubuntu.com/security/notices/USN-1268-1
- https://ubuntu.com/security/notices/USN-1274-1
- https://ubuntu.com/security/notices/USN-1271-1
- https://ubuntu.com/security/notices/USN-1294-1
- https://ubuntu.com/security/notices/USN-1241-1
- https://ubuntu.com/security/notices/USN-1243-1
- https://ubuntu.com/security/notices/USN-1253-1
- https://ubuntu.com/security/notices/USN-1239-1
- https://ubuntu.com/security/notices/USN-1236-1
- https://ubuntu.com/security/notices/USN-1275-1
- https://ubuntu.com/security/notices/USN-1240-1
- https://ubuntu.com/security/notices/USN-1260-1
- https://ubuntu.com/security/notices/USN-1245-1
- https://ubuntu.com/security/notices/USN-1242-1
- https://ubuntu.com/security/notices/USN-1280-1
- https://ubuntu.com/security/notices/USN-1168-1
- https://ubuntu.com/security/notices/USN-1162-1
- https://ubuntu.com/security/notices/USN-1161-1
- https://ubuntu.com/security/notices/USN-1159-1
- https://launchpad.net/ubuntu/+source/linux-ti-omap4/2.6.38-1209.17
- https://ubuntu.com/security/notices/USN-1281-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-1281-1?
The severity of USN-1281-1 is high due to the potential for a local attacker to exploit a race condition that leads to a denial of service.
What systems are affected by USN-1281-1?
USN-1281-1 affects Ubuntu 11.04 running the linux-image-2.6.38-1209-omap4 package prior to version 2.6.38-1209.17.
How do I fix USN-1281-1?
To fix USN-1281-1, update the linux-image-2.6.38-1209-omap4 package to version 2.6.38-1209.17 or newer.
What are the potential impacts of USN-1281-1?
The impact of USN-1281-1 includes system crashes and denial of service if vulnerable systems are exploited.
Who discovered the vulnerability in USN-1281-1?
The vulnerability in USN-1281-1 was discovered by Andrea Righi.
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