CVE-2013-2237
CVE-2013-2237 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: Low (CVSS 2.0 base score 2.1)
- EPSS exploit prediction: 1% (42nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
The key_notify_policy_flush function in net/key/af_key.c in the Linux kernel before 3.9 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory by reading a broadcast message from the notify_policy interface of an IPSec key_socket.
Frequently asked questions
- What is CVE-2013-2237?
- The key_notify_policy_flush function in net/key/af_key.c in the Linux kernel before 3.9 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory by reading a broadcast message from the notify_policy interface of an IPSec key_socket.
- How severe is CVE-2013-2237?
- CVE-2013-2237 has a CVSS 2.0 base score of 2.1, rated low severity.
- Is CVE-2013-2237 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2013-2237?
- CVE-2013-2237 primarily affects Linux Linux Kernel. In total, 242 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2013-2237?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2013-2237 published?
- CVE-2013-2237 was published on 2013-07-04 and last updated on 2026-06-16.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=85dfb745ee40232876663ae206cba35f24ab2a40
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html
- http://lists.opensuse.org/opensuse-updates/2013-12/msg00129.html
- http://rhn.redhat.com/errata/RHSA-2013-1166.html
- http://rhn.redhat.com/errata/RHSA-2013-1173.html
- http://www.debian.org/security/2013/dsa-2766
- http://www.openwall.com/lists/oss-security/2013/07/04/3
- http://www.ubuntu.com/usn/USN-1912-1
- http://www.ubuntu.com/usn/USN-1913-1
- http://www.ubuntu.com/usn/USN-1970-1
- http://www.ubuntu.com/usn/USN-1972-1
- http://www.ubuntu.com/usn/USN-1973-1
- http://www.ubuntu.com/usn/USN-1992-1
- http://www.ubuntu.com/usn/USN-1993-1
- http://www.ubuntu.com/usn/USN-1995-1
- http://www.ubuntu.com/usn/USN-1998-1
- https://bugzilla.redhat.com/show_bug.cgi?id=981220
- https://github.com/torvalds/linux/commit/85dfb745ee40232876663ae206cba35f24ab2a40
- https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.9.bz2
Affected products (242)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.2:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.3:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.4:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.5:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.6:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.7:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.9:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.10:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.11:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.12:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.13:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.14:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.15:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.16:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.17:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.18:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.19:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.20:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.21:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.22:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.23:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.24:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.25:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.26:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.27:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.28:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.29:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.30:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.31:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.0.32:*:*:*:*:*:*:*
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