Vulnerability Monitor

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CVE-2007-6239

The "cache update reply processing" functionality in Squid 2.x before 2.6.STABLE17 and Squid 3.0 allows remote attackers to cause a denial of service (crash) via unknown vectors related to HTTP headers and an Array memory leak during requests for cached objects.

Security Impact Summary

CVE-2007-6239 is a security vulnerability that . Impacting 1 product from squid organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2007, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2007-12-04T18:46:00.000

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	squid	squid_web_proxy_cache	2.0_patch2	Yes
Application	squid	squid_web_proxy_cache	2.1_patch2	Yes
Application	squid	squid_web_proxy_cache	2.3.stable4	Yes
Application	squid	squid_web_proxy_cache	2.3.stable5	Yes
Application	squid	squid_web_proxy_cache	2.4_stable2	Yes
Application	squid	squid_web_proxy_cache	2.4_stable4	Yes
Application	squid	squid_web_proxy_cache	2.4_stable6	Yes
Application	squid	squid_web_proxy_cache	2.4_stable7	Yes
Application	squid	squid_web_proxy_cache	2.5.stable11	Yes
Application	squid	squid_web_proxy_cache	2.5.stable12	Yes
Application	squid	squid_web_proxy_cache	2.5.stable13	Yes
Application	squid	squid_web_proxy_cache	2.5.stable14	Yes
Application	squid	squid_web_proxy_cache	2.5_.stable9	Yes
Application	squid	squid_web_proxy_cache	2.5_stable1	Yes
Application	squid	squid_web_proxy_cache	2.5_stable3	Yes
Application	squid	squid_web_proxy_cache	2.5_stable4	Yes
Application	squid	squid_web_proxy_cache	2.5_stable5	Yes
Application	squid	squid_web_proxy_cache	2.5_stable6	Yes
Application	squid	squid_web_proxy_cache	2.5_stable7	Yes
Application	squid	squid_web_proxy_cache	2.5_stable8	Yes
Application	squid	squid_web_proxy_cache	2.5_stable10	Yes
Application	squid	squid_web_proxy_cache	2.6	Yes
Application	squid	squid_web_proxy_cache	2.6.stable1	Yes
Application	squid	squid_web_proxy_cache	2.6.stable2	Yes
Application	squid	squid_web_proxy_cache	2.6.stable3	Yes
Application	squid	squid_web_proxy_cache	2.6.stable4	Yes
Application	squid	squid_web_proxy_cache	2.6.stable5	Yes
Application	squid	squid_web_proxy_cache	2.6.stable6	Yes
Application	squid	squid_web_proxy_cache	2.6.stable7	Yes
Application	squid	squid_web_proxy_cache	2.6.stable12	Yes
Application	squid	squid_web_proxy_cache	2.6.stable13	Yes
Application	squid	squid_web_proxy_cache	2.6.stable14	Yes
Application	squid	squid_web_proxy_cache	2.6.stable15	Yes
Application	squid	squid_web_proxy_cache	2.6.stable16	Yes
Application	squid	squid_web_proxy_cache	3.0	Yes
Application	squid	squid_web_proxy_cache	3.0_pre1	Yes
Application	squid	squid_web_proxy_cache	3.0_pre2	Yes
Application	squid	squid_web_proxy_cache	3.0_pre3	Yes

References

http://bugs.gentoo.org/show_bug.cgi?id=201209 ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00002.html ([email protected])
http://secunia.com/advisories/27910 Patch, Vendor Advisory ([email protected])
http://secunia.com/advisories/28091 Vendor Advisory ([email protected])
http://secunia.com/advisories/28109 Vendor Advisory ([email protected])
http://secunia.com/advisories/28350 Vendor Advisory ([email protected])
http://secunia.com/advisories/28381 Vendor Advisory ([email protected])
http://secunia.com/advisories/28403 Vendor Advisory ([email protected])
http://secunia.com/advisories/28412 Vendor Advisory ([email protected])
http://secunia.com/advisories/28814 Vendor Advisory ([email protected])
http://secunia.com/advisories/34467 Vendor Advisory ([email protected])
http://security.gentoo.org/glsa/glsa-200801-05.xml ([email protected])
http://security.gentoo.org/glsa/glsa-200903-38.xml ([email protected])
http://www.debian.org/security/2008/dsa-1482 Patch ([email protected])
http://www.kb.cert.org/vuls/id/232881 US Government Resource ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2008:002 ([email protected])
http://www.redhat.com/support/errata/RHSA-2007-1130.html Patch ([email protected])
http://www.securityfocus.com/bid/26687 Patch ([email protected])
http://www.securitytracker.com/id?1019036 ([email protected])
http://www.squid-cache.org/Advisories/SQUID-2007_2.txt Patch, Vendor Advisory ([email protected])
http://www.squid-cache.org/Versions/v2/2.6/changesets/11780.patch Exploit, Vendor Advisory ([email protected])
http://www.ubuntu.com/usn/usn-565-1 ([email protected])
http://www.vupen.com/english/advisories/2007/4066 Vendor Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=410181 ([email protected])
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10915 ([email protected])
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00497.html ([email protected])
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00507.html ([email protected])
http://bugs.gentoo.org/show_bug.cgi?id=201209 (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00002.html (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/27910 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28091 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28109 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28350 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28381 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28403 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28412 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/28814 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34467 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-200801-05.xml (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-200903-38.xml (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2008/dsa-1482 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.kb.cert.org/vuls/id/232881 US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2008:002 (af854a3a-2127-422b-91ae-364da2661108)
http://www.redhat.com/support/errata/RHSA-2007-1130.html Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/26687 Patch (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1019036 (af854a3a-2127-422b-91ae-364da2661108)
http://www.squid-cache.org/Advisories/SQUID-2007_2.txt Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.squid-cache.org/Versions/v2/2.6/changesets/11780.patch Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.ubuntu.com/usn/usn-565-1 (af854a3a-2127-422b-91ae-364da2661108)
http://www.vupen.com/english/advisories/2007/4066 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=410181 (af854a3a-2127-422b-91ae-364da2661108)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10915 (af854a3a-2127-422b-91ae-364da2661108)
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00497.html (af854a3a-2127-422b-91ae-364da2661108)
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00507.html (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For squid's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.