CVE-2010-3081 EXPLOIT
7.8
HIGH · CVSS 3.1 · EPSS 3.5% (pctl 89)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.53% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2010-09-24 |
| Last modified | 2026-06-16 |
Affected (4)
| Vendor | Product |
|---|---|
| linux | linux kernel |
| suse | suse linux enterprise desktop |
| suse | suse linux enterprise server |
| vmware | esx |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.6.27 < 2.6.36 (RedHat x86-64) - 'compat' Local Privilege Escalation | 2010-09-16 |
References
- http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0273.html
- http://archives.neohapsis.com/archives/fulldisclosure/2010-09/0278.html
- http://blog.ksplice.com/2010/09/cve-2010-3081/
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c41d68a513c71e35a14f66d71782d27a79a81ea6
- http://isc.sans.edu/diary.html?storyid=9574
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
- http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://marc.info/?l=oss-security&m=128461522230211&w=2
- http://secunia.com/advisories/42384
- http://secunia.com/advisories/43315
- http://sota.gen.nz/compat1/
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.log
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:214
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:247
- http://www.redhat.com/support/errata/RHSA-2010-0758.html
- http://www.redhat.com/support/errata/RHSA-2010-0842.html
- http://www.redhat.com/support/errata/RHSA-2010-0882.html
- http://www.securityfocus.com/archive/1/514938/30/30/threaded
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