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CVE-2013-3076

19
FAUCET Score

CVE-2013-3076 is a local information disclosure vulnerability affecting the Linux kernel up to version 3.9-rc8. It stems from uninitialized length variables in the crypto API, specifically within the hash_recvmsg and skcipher_recvmsg functions. This allows local attackers to extract sensitive data from kernel stack memory via crafted recvmsg or recvfrom system calls. With a CVSS score of 4.9 (AV:L/AC:L/Au:N/C:C/I:N/A:N), it poses a moderate risk, primarily due to its high confidentiality impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:rc7:*:*:*:*:*:*
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
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
28.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 43rd percentile among its peer group of 3,052 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:3.6.11.2-rt33.39.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2013-3076Low

Kernel: crypto: algif - suppress sending source address information in recvmsg

Apr 7, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2013-April/103750.html
lists.fedoraproject.org / pipermail/package-announce/2013-May/104480.html
lists.opensuse.org / opensuse-security-announce/2013-07/msg00016.html
lists.opensuse.org / opensuse-security-announce/2013-07/msg00018.html
github.com / torvalds/linux/commit/72a763d805a48ac8c0bf48fdb510e84c12de51fe
openwall.com / lists/oss-security/2013/04/14/3
ubuntu.com / usn/USN-1837-1