What’s Vulnerable › Vulnerabilities

CVE-2016-2572

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 10.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-02-27 · updated 2026-06-17
• Weakness: CWE-20

Description

http.cc in Squid 4.x before 4.0.7 relies on the HTTP status code after a response-parsing failure, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a malformed response.

Affected products

• Squid: 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6

References

• 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/2016-08/msg00069.html
• http://rhn.redhat.com/errata/RHSA-2016-2600.html
• http://www.openwall.com/lists/oss-security/2016/02/26/2
• http://www.securitytracker.com/id/1035101
• http://www.squid-cache.org/Advisories/SQUID-2016_2.txt
• http://www.squid-cache.org/Versions/v4/changesets/squid-4-14548.patch
• https://security.gentoo.org/glsa/201607-01
• 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/2016-08/msg00069.html

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