CVEvulnerability
CVE-2012-2136
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2012-08-09
- Last modified
- 2026-06-16
- Assigner
- [email protected]
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-20
Description
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.
Affected configurations
• linux linux kernel (< 3.0.37)
• linux linux kernel (>= 3.1 < 3.2.23)
• linux linux kernel (>= 3.3 < 3.4.5)
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
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
- 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