Out-of-bounds write in Linux kernel - CVE-2011-1017

Vulnerability identifier: #VU45268

CSH Severity: High

CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2011-1017

CWE-ID: CWE-787

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Heap-based buffer overflow in the ldm_frag_add function in fs/partitions/ldm.c in the Linux kernel 2.6.37.2 and earlier might allow local users to gain privileges or obtain sensitive information via a crafted LDM partition table.

Linux kernel
Ubuntu
linux-source-2.6.15 (Ubuntu package)
linux (Ubuntu package)
linux-image-2.6.32-317-ec2 (Ubuntu package)
linux-lts-backport-maverick (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 2.6.37.2
linux-source-2.6.15 (Ubuntu package) - update to 2.6.15-57.97
linux (Ubuntu package) - addressed in versions 2.6.24-29.90, 2.6.32-33.70, 2.6.35-30.54, 2.6.38-10.46
linux-image-2.6.32-317-ec2 (Ubuntu package) - update to 2.6.32-317.36
linux-lts-backport-maverick (Ubuntu package) - update to 2.6.35-30.56~lucid1

• http://openwall.com/lists/oss-security/2011/02/23/16
• http://openwall.com/lists/oss-security/2011/02/24/14
• http://openwall.com/lists/oss-security/2011/02/24/4
• http://secunia.com/advisories/43716
• http://secunia.com/advisories/43738
• http://securityreason.com/securityalert/8115
• http://securitytracker.com/id?1025128
• http://www.pre-cert.de/advisories/PRE-SA-2011-01.txt
• http://www.securityfocus.com/archive/1/516615/100/0/threaded
• http://www.securityfocus.com/bid/46512
• http://www.ubuntu.com/usn/USN-1146-1

• Out-of-bounds write in Linux kernel
• Ubuntu update for linux-ec2
• Ubuntu update for linux-source-2.6.15
• Ubuntu update for linux
• Ubuntu update for linux
• Ubuntu update for linux
• Ubuntu update for linux
• Ubuntu update for linux-lts-backport-maverick