PT-2011-3670 · Linux · Linux Kernel

Robert Åwiäcki · Published 2011-09-06 · Updated 2023-02-13 · CVE-2011-2184

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.39.1

Description The issue is related to the key replace session keyring function in the Linux kernel, which does not initialize a certain structure member. This can be exploited by local users to cause a denial of service, resulting in a NULL pointer dereference and OOPS, or possibly have other unspecified impacts. The exploitation is possible via a KEYCTL SESSION TO PARENT argument to the keyctl function.

Recommendations For Linux kernel versions prior to 2.6.39.1, update to version 2.6.39.1 or later to resolve the issue.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2011-2184

Affected Products

Linux Kernel

References · 13

• http://securityreason.com/securityalert/8371 · Patch
• https://ubuntu.com/security/CVE-2011-2184 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2011-2184 · Security Note
• http://openwall.com/lists/oss-security/2011/06/03/2 · Patch
• http://openwall.com/lists/oss-security/2011/06/06/2 · Patch
• https://lkml.org/lkml/2011/5/25/265 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2011-2184 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2011-2184 · Security Note
• https://lkml.org/lkml/2011/5/24/502 · Note
• https://lkml.org/lkml/2011/5/23/199 · Note
• http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.1 · Note
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f7285b5d631fd6096b11c6af0058ed3a2b30ef4e · Note
• http://alt.swiecki.net/linux_kernel/sys_open-kmem_cache_alloc-2.6.39-rc4.txt · Note