CVEvulnerability

CVE-2010-3081

7.8 HIGH Published 2010-09-24 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2010-09-24
Last modified
2026-06-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-119

Description

The compat_alloc_user_space functions in include/asm/compat.h files in the Linux kernel before 2.6.36-rc4-git2 on 64-bit platforms do not properly allocate the userspace memory required for the 32-bit compatibility layer, which allows local users to gain privileges by leveraging the ability of the compat_mc_getsockopt function (aka the MCAST_MSFILTER getsockopt support) to control a certain length value, related to a "stack pointer underflow" issue, as exploited in the wild in September 2010.

Affected configurations

• linux linux kernel (<= 2.6.35.4) • linux linux kernel 2.6.36 • vmware esx 4.0 • vmware esx 4.1 • suse suse linux enterprise desktop 11 • suse suse linux enterprise server 11

Related

Weakness · CWE (1)

  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References