Input validation error in Squid - CVE-2016-2390
Published: April 20, 2016 / Updated: August 9, 2020
Vulnerability identifier: #VU40340
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-2390
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Squid-cache.org
Affected software:
Squid
Squid
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
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.
How to mitigate CVE-2016-2390
Install update from vendor's website.
Sources
- 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.html
- http://lists.squid-cache.org/pipermail/squid-announce/2016-February/000038.html
- http://www.securitytracker.com/id/1035045
- http://www.squid-cache.org/Advisories/SQUID-2016_1.txt