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CVE-2012-6542

14
FAUCET Score

CVE-2012-6542 describes an information disclosure vulnerability in the Linux kernel's llc_ui_getname function (net/llc/af_llc.c) before version 3.6, affecting various Linux distributions including Red Hat Enterprise Linux. This flaw allows local users to extract sensitive data from kernel stack memory due to an incorrect return value and an uninitialized pointer. The vulnerability has a low CVSS score of 1.9 (AV:L/AC:M/Au:N/C:P/I:N/A:N), indicating a local attack vector with medium complexity, leading to partial confidentiality impact but no integrity or availability impact. Its FAUCET Risk Score is 5/100, suggesting minimal immediate risk. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and it is not listed in the KEV catalog. Community discussion and media coverage are absent, consistent with the majority of CVEs.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.5.7CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

1.9LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
28.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 57th percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-348.4.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-431.el6
View patch

Vendor Advisories (1)

redhatCVE-2012-6542Low

Kernel: llc: information leak via getsockname

Aug 15, 2012

References

git.kernel.org
rhn.redhat.com / errata/RHSA-2013-1645.html
github.com / torvalds/linux/commit/3592aaeb80290bda0f2cf0b5456c97bfc638b192
kernel.org / pub/linux/kernel/v3.x/patch-3.6.bz2
Patch
openwall.com / lists/oss-security/2013/03/05/13
ubuntu.com / usn/USN-1805-1
ubuntu.com / usn/USN-1808-1