Unrated severityNVD Advisory· Published Aug 9, 2012· Updated Jun 16, 2026
CVE-2012-2136
CVE-2012-2136
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.
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Affected products
2Patches
Vulnerability mechanics
References
10- github.com/torvalds/linux/commit/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1ccnvdExploitPatch
- rhn.redhat.com/errata/RHSA-2012-0743.htmlnvdThird Party AdvisoryVDB Entry
- rhn.redhat.com/errata/RHSA-2012-1087.htmlnvdThird Party Advisory
- ubuntu.com/usn/usn-1529-1nvdThird Party Advisory
- www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5nvdVendor Advisory
- www.securityfocus.com/bid/53721nvdThird Party AdvisoryVDB Entry
- www.ubuntu.com/usn/USN-1535-1nvdThird Party Advisory
- git.kernel.orgnvdBroken Link
- secunia.com/advisories/50807nvdURL Repurposed
- bugzilla.redhat.com/show_bug.cginvdIssue Tracking
News mentions
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