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CVE-2012-5643

29
FAUCET Score

CVE-2012-5643 describes multiple memory leak vulnerabilities in the cachemgr.cgi component of Squid 2.x and 3.x versions prior to 3.1.22, 3.2.4, and 3.3.0.2. These flaws can be triggered by remote attackers using invalid Content-Length headers, long POST requests, or crafted authentication credentials. The vulnerability has a CVSS score of 5.0, indicating a medium severity, and allows for a denial of service through memory consumption. There is no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:2.0:*:*:*:*:*:*:*
2.1CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:2.1:*:*:*:*:*:*:*
2.2CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:2.2:*:*:*:*:*:*:*
2.3CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:2.3:*:*:*:*:*:*:*
2.4CPE matchmatch criteria
cpe:2.3:a:squid-cache:squid:2.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
23.00%
Probability of exploitation in next 30 days
EPSS Percentile
97.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.2301 is in the 98th percentile among its peer group of 23,684 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: squid-7:3.1.10-16.el6
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: squid

Vendor Advisories (1)

redhatCVE-2012-5643Moderate

squid: cachemgr.cgi memory usage DoS and memory leaks

Dec 17, 2012

References

lists.opensuse.org / opensuse-security-announce/2016-08/msg00010.html
lists.opensuse.org / opensuse-security-announce/2016-08/msg00040.html
lists.opensuse.org / opensuse-updates/2013-01/msg00052.html
lists.opensuse.org / opensuse-updates/2013-01/msg00075.html
lists.opensuse.org / opensuse-updates/2013-09/msg00025.html
lists.opensuse.org / opensuse-updates/2013-09/msg00032.html
openwall.com / lists/oss-security/2012/12/17/4
rhn.redhat.com / errata/RHSA-2013-0505.html
bugs.gentoo.org / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/52024
secunia.com / advisories/54839
wiki.mageia.org / en/Support/Advisories/MGASA-2012-0368
ubuntu.com / usn/usn-1713-1
debian.org / security/2013/dsa-2631
mandriva.com / security/advisories
securitytracker.com / id
squid-cache.org / Advisories/SQUID-2012_1.txt
PatchVendor Advisory
squid-cache.org / Versions/v3/3.1/changesets/squid-3.1-10479.patch
Patch
squid-cache.org / Versions/v3/3.2/changesets/squid-3.2-11714.patch
Patch