Vulnerability Details : CVE-2013-1826
The xfrm_state_netlink function in net/xfrm/xfrm_user.c in the Linux kernel before 3.5.7 does not properly handle error conditions in dump_one_state function calls, which allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) by leveraging the CAP_NET_ADMIN capability.
Vulnerability category: Memory CorruptionDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2013-1826
Probability of exploitation activity in the next 30 days: 0.04%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 6 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2013-1826
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
6.2
|
MEDIUM | AV:L/AC:H/Au:N/C:C/I:C/A:C |
1.9
|
10.0
|
NIST |
References for CVE-2013-1826
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http://rhn.redhat.com/errata/RHSA-2013-0744.html
RHSA-2013:0744 - Security Advisory - Red Hat Customer Portal
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=864745d291b5ba80ea0bd0edcbe67273de368836
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http://www.openwall.com/lists/oss-security/2013/03/07/2
oss-security - Re: CVE Requests (maybe): Linux kernel: various info leaks, some NULL ptr derefs
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http://www.ubuntu.com/usn/USN-1829-1
USN-1829-1: Linux kernel (EC2) vulnerabilities | Ubuntu security notices
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https://bugzilla.redhat.com/show_bug.cgi?id=919384
919384 – (CVE-2013-1826) CVE-2013-1826 Kernel: xfrm_user: return error pointer instead of NULL
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https://github.com/torvalds/linux/commit/864745d291b5ba80ea0bd0edcbe67273de368836
xfrm_user: return error pointer instead of NULL · torvalds/linux@864745d · GitHub
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.5.7
Products affected by CVE-2013-1826
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.5.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.5.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.5.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.5.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.5.5:*:*:*:*:*:*:*