CVE-2012-2136
HIGH · CVSS 7.2EPSS 0.6%EU EUVD
The sock_alloc_send_pskb function in net/core/sock.c in the Linux kernel before 3.4.5 does not properly validate a certain length value, which allows local users to cause a denial of service (heap-based buffer overflow and system crash) or possibly gain privileges by leveraging access to a TUN/TAP device.
Key facts
- CVSS score
- 7.2 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:L/AC:L/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-20
- EPSS score
- 0.6% (47th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2012-2136)
- Published
- August 9, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2012-2136 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- linux / linux kernel
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cc(Broken Link)
- http://rhn.redhat.com/errata/RHSA-2012-0743.html(Third Party Advisory, VDB Entry)
- http://rhn.redhat.com/errata/RHSA-2012-1087.html(Third Party Advisory)
- http://secunia.com/advisories/50807(URL Repurposed)
- http://ubuntu.com/usn/usn-1529-1(Third Party Advisory)
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5(Vendor Advisory)
- http://www.securityfocus.com/bid/53721(Third Party Advisory, VDB Entry)
- http://www.ubuntu.com/usn/USN-1535-1(Third Party Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=816289(Issue Tracking)
- https://github.com/torvalds/linux/commit/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cc(Exploit, Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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