PRIOn knowledge basePRION:CVE-2012-2136Heap overflow
7.6 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.4%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux_kernel | lt | 3.0.37 | |
| linux_kernel | ge | 3.1 | |
| linux_kernel | lt | 3.2.23 | |
| linux_kernel | ge | 3.3 | |
| linux_kernel | lt | 3.4.5 |
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cc
rhn.redhat.com/errata/RHSA-2012-0743.html
rhn.redhat.com/errata/RHSA-2012-1087.html
secunia.com/advisories/50807
ubuntu.com/usn/usn-1529-1
www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
www.securityfocus.com/bid/53721
www.ubuntu.com/usn/USN-1535-1
bugzilla.redhat.com/show_bug.cgi?id=816289
github.com/torvalds/linux/commit/cc9b17ad29ecaa20bfe426a8d4dbfb94b13ff1cc
Related
7.6 High
AI Score
Confidence
High
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
5.4%