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.

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

3.53% chance of exploitation in the next 30 days, 88th percentile

Published

2010-09-24

Updated

2024-08-07

Proof-of-concept exploits (1)

• http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0278.html

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/15024

Exploit collections (1)

• helloexp/0day/tree/master/98-Linux%E6%8F%90%E6%9D%83/2010/CVE-2010-3081

References

• CVE Record
• NVD entry

Related

• CVE-2010-3077
• CVE-2010-3106
• CVE-2010-3073
• CVE-2010-3124
• CVE-2010-3070
• CVE-2010-3125