Debian DSA-1212-1 : openssh - Denial of service
High Nessus Plugin ID 23661
SynopsisThe remote Debian host is missing a security-related update.
DescriptionTwo denial of service problems have been found in the OpenSSH server.
The Common Vulnerabilities and Exposures project identifies the following vulnerabilities :
- CVE-2006-4924 The sshd support for ssh protocol version 1 does not properly handle duplicate incoming blocks. This could allow a remote attacker to cause sshd to consume significant CPU resources leading to a denial of service.
- CVE-2006-5051 A signal handler race condition could potentially allow a remote attacker to crash sshd and could theoretically lead to the ability to execute arbitrary code.
SolutionUpgrade the openssh package.
For the stable distribution (sarge), these problems have been fixed in version 1:3.8.1p1-8.sarge.6.
For the unstable and testing distributions, these problems have been fixed in version 1:4.3p2-4.