What’s Vulnerable › Vulnerabilities

CVE-2013-4123

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 80.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-09-16 · updated 2026-06-16
• Weakness: CWE-20

Description

client_side_request.cc in Squid 3.2.x before 3.2.13 and 3.3.x before 3.3.8 allows remote attackers to cause a denial of service via a crafted port number in a HTTP Host header.

Affected products

• Opensuse: 12.3
• Squid: 3.3.0, 3.3.0.2, 3.3.0.3, 3.3.1, 3.3.2, 3.3.3 (+35)

References

• http://lists.opensuse.org/opensuse-updates/2013-09/msg00024.html
• http://secunia.com/advisories/54142
• http://secunia.com/advisories/54834
• http://www.squid-cache.org/Advisories/SQUID-2013_3.txt
• http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11826.patch
• http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12591.patch
• http://lists.opensuse.org/opensuse-updates/2013-09/msg00024.html
• http://secunia.com/advisories/54142
• http://secunia.com/advisories/54834
• http://www.squid-cache.org/Advisories/SQUID-2013_3.txt
• http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11826.patch
• http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12591.patch

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