Vulnerability Monitor

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CVE-2010-3081

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.

Published

2010-09-24T20:00:02.183

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

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

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel ≤ 2.6.35.4 Yes
Operating System linux linux_kernel 2.6.36 Yes
Operating System linux linux_kernel 2.6.36 Yes
Operating System linux linux_kernel 2.6.36 Yes
Operating System linux linux_kernel 2.6.36 Yes
Operating System vmware esx 4.0 Yes
Operating System vmware esx 4.1 Yes
Operating System suse suse_linux_enterprise_desktop 11 Yes
Operating System suse suse_linux_enterprise_server 11 Yes
References