Out-of-bounds read in Linux kernel - CVE-2011-4914

Vulnerability identifier: #VU90980

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2011-4914

CWE-ID: CWE-125

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the ROSE protocol implementation. A remote attacker can send specially crafted data via a ROSE socket, trigger an out-of-bounds read and perform a denial of service (DoS) attack.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-image-2.6.32-318-ec2 (Ubuntu package)
linux-lts-backport-maverick (Ubuntu package)
linux-lts-backport-natty (Ubuntu package)

Install updates from vendor's website.

Linux kernel - update to 2.6.39
linux (Ubuntu package) - addressed in versions 2.6.24-29.93, 2.6.32-34.77, 2.6.35-30.59, 2.6.38-11.50
linux-image-2.6.32-318-ec2 (Ubuntu package) - update to 2.6.32-318.38
linux-lts-backport-maverick (Ubuntu package) - update to 2.6.35-30.59~lucid1
linux-lts-backport-natty (Ubuntu package) - update to 2.6.38-12.51~lucid1

• http://www.openwall.com/lists/oss-security/2011/12/28/2
• https://bugzilla.redhat.com/show_bug.cgi?id=770777
• https://github.com/torvalds/linux/commit/e0bccd315db0c2f919e7fcf9cb60db21d9986f52
• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
• http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e0bccd315db0c2f919e7fcf9cb60db21d9986f52

• Remote denial of service in Linux kernel ROSE protocol
• Ubuntu update for linux-ec2
• Ubuntu update for linux
• Ubuntu update for linux-lts-backport-maverick
• Ubuntu update for linux
• Ubuntu update for linux
• Ubuntu update for linux
• Ubuntu update for linux-lts-backport-natty