Buffer overflow in Bip 0.8.8 and earlier might allow remote authenticated users to execute arbitrary code via vectors involving a series of TCP connections that triggers use of many open file descriptors.

Bip before 0.8.9, when running as a daemon, writes SSL handshake errors to an unexpected file descriptor that was previously associated with stderr before stderr has been closed, which allows remote attackers to write to other sockets and have an unspecified impact via a failed SSL handshake, a different vulnerability than CVE-2011-5268. NOTE: some sources originally mapped this CVE to two different types of issues; this CVE has since been SPLIT, producing CVE-2011-5268.

A denial of service flaw was found in the way Bip IRC Bouncer exchanged user credentials by initiating the IRC protocol session. A remote, unauthenticated user could send a specially crafted connection request, leading to bip daemon crash (NULL pointer dereference)

References: [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=595409

connection.c in Bip before 0.8.9 does not properly close sockets, which allows remote attackers to cause a denial of service (file descriptor consumption and crash) via multiple failed SSL handshakes, a different vulnerability than CVE-2013-4550. NOTE: this issue was SPLIT from CVE-2013-4550 because it is a different type of issue.