CVE-2012-2136
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.58%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 2.0
- 7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 0.58% probability · 46th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- linux/linux kernel
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1ccBroken Link
- http://rhn.redhat.com/errata/RHSA-2012-0743.htmlThird Party Advisory, VDB 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 Advisory, VDB 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/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1ccExploit, Patch
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1ccBroken Link
- http://rhn.redhat.com/errata/RHSA-2012-0743.htmlThird Party Advisory, VDB 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 Advisory, VDB 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/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1ccExploit, Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.