An integer overflow vulnerability was found in SSL/TLS parser in Squid HTTP Proxy, that can lead to invalid pointer reading from random memory on some CPU architectures. This leads to wrong TLS extensiosn being used for the client or it can also cause the crash of the proxy terminating all active transactions. This can be triggered remotely. Although there is one layer of authorization applied before this processing to check that the client is allowed to use the proxy, the check is considered generally weak. Affected versions are from 3.5.0.1 to 3.5.8, which are built with OpenSSL and configured for "SSL-Bump" decryption. CVE request: http://seclists.org/oss-sec/2015/q3/577
Created attachment 1074906 [details] Upstream patch
Created squid tracking bugs for this issue: Affects: fedora-all [bug 1264450]
Security Advisory: http://www.squid-cache.org/Advisories/SQUID-2015_3.txt
I believe this was introduced via: http://bazaar.launchpad.net/~squid/squid/trunk/revision/14012 This code never made it into RHEL5, 6, or 7. Statement: This issue did not affect the versions of squid as shipped with Red Hat Enterprise Linux 5, 6, and 7.