CVE-2015-3455

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 11.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-05-18 · updated 2026-06-17
Weakness: CWE-20

Description

Squid 3.2.x before 3.2.14, 3.3.x before 3.3.14, 3.4.x before 3.4.13, and 3.5.x before 3.5.4, when configured with client-first SSL-bump, do not properly validate the domain or hostname fields of X.509 certificates, which allows man-in-the-middle attackers to spoof SSL servers via a valid certificate.

Affected products

Fedoraproject Fedora: 22
Oracle Corporation Oracle Linux: 7
Oracle Corporation Solaris Operating System: 11.2
Squid: 3.2.0.1, 3.2.0.2, 3.2.0.3, 3.2.0.4, 3.2.0.5, 3.2.0.6 (+64)

References

http://advisories.mageia.org/MGASA-2015-0191.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183598.html
http://lists.opensuse.org/opensuse-updates/2015-09/msg00016.html
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
http://rhn.redhat.com/errata/RHSA-2015-2378.html
http://www.mandriva.com/security/advisories?name=MDVSA-2015:230
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/74438
http://www.securitytracker.com/id/1032221
http://www.squid-cache.org/Advisories/SQUID-2015_1.txt
http://advisories.mageia.org/MGASA-2015-0191.html

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