A remote overflow exists in Gaim. The HTTP proxy (http_canread function) subsystem fails to check if the proxy sends more than 8192 bytes in a line, resulting in a buffer overflow. With a malicious proxy sending specially crafted input, an attacker can overwrite the buffer and gain control of the instruction pointer resulting in a loss of integrity.
Classification
Location:
Remote / Network Access
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Unknown
Disclosure:
OSVDB Verified
Solution
Upgrade to version 0.76 when available. The FreeBSD security team has released an unoffcial patch which also corrects this vulnerability.