- Vulnerability/
- USN-1246-1
USN-1246-1: Linux kernel vulnerabilities
First published: Tue Oct 25 2011(Updated: )
Dan Rosenberg discovered that the IPv4 diagnostic routines did not correctly validate certain requests. A local attacker could exploit this to consume CPU resources, leading to a denial of service. (CVE-2011-2213) Dan Rosenberg discovered that the Bluetooth stack incorrectly handled certain L2CAP requests. If a system was using Bluetooth, a remote attacker could send specially crafted traffic to crash the system or gain root privileges. (CVE-2011-2497) 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) Mauro Carvalho Chehab discovered that the si4713 radio driver did not correctly check the length of memory copies. If this hardware was available, a local attacker could exploit this to crash the system or gain root privileges. (CVE-2011-2700) Herbert Xu discovered that certain fields were incorrectly handled when Generic Receive Offload (CVE-2011-2723) Time Warns discovered that long symlinks were incorrectly handled on Be filesystems. A local attacker could exploit this with a malformed Be filesystem and crash the system, leading to a denial of service. (CVE-2011-2928) Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets. (CVE-2011-3188) Darren Lavender discovered that the CIFS client incorrectly handled certain large values. A remote attacker with a malicious server could exploit this to crash the system or possibly execute arbitrary code as the root user. (CVE-2011-3191)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-2.6.38-12-powerpc64-smp | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-powerpc-smp | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-powerpc | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-generic-pae | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-virtual | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-server | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-versatile | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-omap | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 | |
| All of | ||
| ubuntu/linux-image-2.6.38-12-generic | <2.6.38-12.51 | 2.6.38-12.51 |
| Ubuntu gir1.2-packagekitglib-1.0 | =11.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2011-2213
- https://ubuntu.com/security/CVE-2011-2497
- https://ubuntu.com/security/CVE-2011-2695
- https://ubuntu.com/security/CVE-2011-2700
- https://ubuntu.com/security/CVE-2011-2723
- https://ubuntu.com/security/CVE-2011-2928
- https://ubuntu.com/security/CVE-2011-3188
- https://ubuntu.com/security/CVE-2011-3191
- https://ubuntu.com/security/notices/USN-1208-1
- https://ubuntu.com/security/notices/USN-1241-1
- https://ubuntu.com/security/notices/USN-1219-1
- https://ubuntu.com/security/notices/USN-1228-1
- https://ubuntu.com/security/notices/USN-1203-1
- https://ubuntu.com/security/notices/USN-1220-1
- https://ubuntu.com/security/notices/USN-1218-1
- https://ubuntu.com/security/notices/USN-1227-1
- https://ubuntu.com/security/notices/USN-1256-1
- https://ubuntu.com/security/notices/USN-1225-1
- https://ubuntu.com/security/notices/USN-1216-1
- https://ubuntu.com/security/notices/USN-1253-1
- https://ubuntu.com/security/notices/USN-1239-1
- https://ubuntu.com/security/notices/USN-1240-1
- https://ubuntu.com/security/notices/USN-1245-1
- https://ubuntu.com/security/notices/USN-1243-1
- https://ubuntu.com/security/notices/USN-1244-1
- https://ubuntu.com/security/notices/USN-1242-1
- https://ubuntu.com/security/notices/USN-1236-1
- https://launchpad.net/ubuntu/+source/linux/2.6.38-12.51
- https://ubuntu.com/security/notices/USN-1246-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-1246-1?
USN-1246-1 is categorized as having a denial of service vulnerability potentially impacting system performance.
How do I fix USN-1246-1?
To resolve USN-1246-1, users should upgrade to the kernel version 2.6.38-12.51 or later.
What software is affected by USN-1246-1?
USN-1246-1 affects Ubuntu 11.04 with specific kernel versions including linux-image-2.6.38-12-powerpc64-smp, linux-image-2.6.38-12-generic, and others.
Who discovered the vulnerabilities in USN-1246-1?
The vulnerabilities detailed in USN-1246-1 were discovered by security researcher Dan Rosenberg.
What type of attacks does USN-1246-1 concern?
USN-1246-1 concerns local denial of service attacks that can consume CPU resources.
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