Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.0.37 |
Related Weaknesses (CWE)
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=Broken Link
- http://rhn.redhat.com/errata/RHSA-2012-0743.htmlThird Party AdvisoryVDB Entry
- http://rhn.redhat.com/errata/RHSA-2012-1087.htmlThird Party Advisory
- http://secunia.com/advisories/50807URL Repurposed
- http://ubuntu.com/usn/usn-1529-1Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5Vendor Advisory
- http://www.securityfocus.com/bid/53721Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1535-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=816289Issue Tracking
- https://github.com/torvalds/linux/commit/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cExploitPatch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=Broken Link
- http://rhn.redhat.com/errata/RHSA-2012-0743.htmlThird Party AdvisoryVDB Entry
- http://rhn.redhat.com/errata/RHSA-2012-1087.htmlThird Party Advisory
- http://secunia.com/advisories/50807URL Repurposed
- http://ubuntu.com/usn/usn-1529-1Third Party Advisory
FAQ
What is CVE-2012-2136?
CVE-2012-2136 is a vulnerability with a CVSS score of 7.2 (HIGH). 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-bas...
How severe is CVE-2012-2136?
CVE-2012-2136 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2012-2136?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.