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CVE-2013-3227

15
FAUCET Score

CVE-2013-3227 describes an information disclosure vulnerability in the Linux kernel, specifically within the caif_seqpkt_recvmsg function in net/caif/caif_socket.c, affecting versions prior to 3.9-rc7. This flaw allows local users to extract sensitive data from kernel stack memory by exploiting an uninitialized length variable through crafted recvmsg or recvfrom system calls. The vulnerability has a CVSS score of 4.9, indicating a medium severity. It requires local access (AV:L) and low attack complexity (AC:L), with no authentication needed (Au:N), leading to a complete confidentiality impact (C:C) but no integrity or availability impact. There is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit, Nuclei, or ExploitDB. Furthermore, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:rc6:*:*:*:*:*:*
3.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.9:rc1:*:*:*:*:*:*
3.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:*
3.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*
3.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

AV:L/AC:L/Au:N/C:C/I:N/A:N

Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 51st percentile among its peer group of 3,052 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2013-3227Low

Kernel: caif: missing msg_namelen update in caif_seqpkt_recvmsg

Apr 7, 2013

References

git.kernel.org
lists.opensuse.org / opensuse-security-announce/2013-07/msg00016.html
lists.opensuse.org / opensuse-security-announce/2013-07/msg00018.html
lists.opensuse.org / opensuse-updates/2013-12/msg00129.html
github.com / torvalds/linux/commit/2d6fbfe733f35c6b355c216644e08e149c61b271
Vendor Advisory
lkml.org / lkml/2013/4/14/107
mandriva.com / security/advisories
openwall.com / lists/oss-security/2013/04/14/3
ubuntu.com / usn/USN-1837-1