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Vulnerability record · CVE-2012-5643 · published 20 December 2012

CVE-2012-5643: Squid-cache squid improper input validation vulnerability

Squid Cache · Squid

Multiple memory leaks in tools/cachemgr.cc in cachemgr.cgi in Squid 2.x and 3.x before 3.1.22, 3.2.x before 3.2.4, and 3.3.x before 3.3.0.2 allow remote attackers to cause a denial of service (memory consumption) via (1) invalid Content-Length headers, (2) long POST requests, or (3) crafted authentication credentials.

5.0 CVSS 2.0 Medium EPSS 23% · top 2.3% CWE-20 · Improper input validation
5.0CVSS 2.0 base score
23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
40References
16 Jun 2026Last modified by NVD

Description

Multiple memory leaks in tools/cachemgr.cc in cachemgr.cgi in Squid 2.x and 3.x before 3.1.22, 3.2.x before 3.2.4, and 3.3.x before 3.3.0.2 allow remote attackers to cause a denial of service (memory consumption) via (1) invalid Content-Length headers, (2) long POST requests, or (3) crafted authentication credentials.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00052.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00075.html
http://lists.opensuse.org/opensuse-updates/2013-09/msg00025.html
http://lists.opensuse.org/opensuse-updates/2013-09/msg00032.html
http://openwall.com/lists/oss-security/2012/12/17/4
http://rhn.redhat.com/errata/RHSA-2013-0505.html
http://secunia.com/advisories/52024
http://secunia.com/advisories/54839
http://ubuntu.com/usn/usn-1713-1
http://www.debian.org/security/2013/dsa-2631
http://www.mandriva.com/security/advisories?name=MDVSA-2013:129
http://www.securitytracker.com/id?1027890
http://www.squid-cache.org/Advisories/SQUID-2012_1.txt PatchVendor Advisory
http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10479.patch Patch
http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11714.patch Patch
https://bugs.gentoo.org/show_bug.cgi?id=447596
https://bugzilla.redhat.com/show_bug.cgi?id=887962
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0368
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00052.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00075.html
http://lists.opensuse.org/opensuse-updates/2013-09/msg00025.html
http://lists.opensuse.org/opensuse-updates/2013-09/msg00032.html
http://openwall.com/lists/oss-security/2012/12/17/4
http://rhn.redhat.com/errata/RHSA-2013-0505.html
http://secunia.com/advisories/52024
http://secunia.com/advisories/54839
http://ubuntu.com/usn/usn-1713-1
http://www.debian.org/security/2013/dsa-2631
http://www.mandriva.com/security/advisories?name=MDVSA-2013:129
http://www.securitytracker.com/id?1027890
http://www.squid-cache.org/Advisories/SQUID-2012_1.txt PatchVendor Advisory
http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10479.patch Patch
http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11714.patch Patch
https://bugs.gentoo.org/show_bug.cgi?id=447596
https://bugzilla.redhat.com/show_bug.cgi?id=887962
https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0368

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2012-5643), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.