bind did not sufficiently verify particular requests and responses from other name servers and users. By sending a specially crafted packet, a remote attacker could exploit this to crash the name server.
Sridhar Samudrala discovered a local Denial of Service vulnerability in the handling of SCTP sockets. By opening such a socket with a special SO_LINGER value, a local attacker could exploit this to crash the kernel. (CVE-2006-4535) Kirill Korotaev discovered that the ELF loader on the ia64 and sparc platforms did not sufficiently verify the memory layout. By attempting to execute a specially crafted executable, a local user could exploit this to crash the kernel. (CVE-2006-4538)
Tavis Ormandy discovered that the SSH daemon did not properly handle authentication packets with duplicated blocks. By sending specially crafted packets, a remote attacker could exploit this to cause the ssh daemon to drain all available CPU resources until the login grace time
expired. (CVE-2006-4924) Mark Dowd discovered a race condition in the server's signal handling.
A remote attacker could exploit this to crash the server. (CVE-2006-5051)
Steve Alexander discovered that mailman did not properly handle attachments with special filenames. A remote user could exploit that to stop mail delivery until the server administrator manually cleaned these posts. (CVE-2006-2941) Various cross-site scripting vulnerabilities have been reported by Barry Warsaw. By using specially crafted email addresses, names, and similar arbitrary user-defined strings, a remote attacker could exploit this to run web script code in the list administrator's web browser. (CVE-2006-3636) URLs logged to the error log file are now checked for invalid characters. Before, specially crafted URLs could inject arbitrary messages into the log.
The GnuTLS library did not sufficiently check the padding of PKCS #1 v1.5 signatures if the exponent of the public key is 3 (which is widely used for CAs). This could be exploited to forge signatures without the need of the secret key.