CVE-2016-2390

The FwdState::connectedToPeer method in FwdState.cc in Squid before 3.5.14 and 4.0.x before 4.0.6 does not properly handle SSL handshake errors when built with the --with-openssl option, which allows remote attackers to cause a denial of service (application crash) via a plaintext HTTP message.

• CWE-20

• http://bugs.squid-cache.org/show_bug.cgi?id=4437
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
• http://lists.squid-cache.org/pipermail/squid-announce/2016-February/000037.htmlVendor Advisory
• http://lists.squid-cache.org/pipermail/squid-announce/2016-February/000038.htmlVendor Advisory
• http://www.securitytracker.com/id/1035045
• http://www.squid-cache.org/Advisories/SQUID-2016_1.txtVendor Advisory
• http://bugs.squid-cache.org/show_bug.cgi?id=4437
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
• http://lists.squid-cache.org/pipermail/squid-announce/2016-February/000037.htmlVendor Advisory
• http://lists.squid-cache.org/pipermail/squid-announce/2016-February/000038.htmlVendor Advisory
• http://www.securitytracker.com/id/1035045
• http://www.squid-cache.org/Advisories/SQUID-2016_1.txtVendor Advisory

Published

Apr 19, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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