Vulnerability identifier: #VU26756
Vulnerability risk: Medium
Exploitation vector: Network
Exploit availability: No
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper resource management while cleaning the AES-CTR ciphers when closing the connection. A remote attacker can initiate a connection to the client and server that supports AES-CTR ciphers and close the connection before ciphers are initialized, triggering a denial of service condition (service crash). The vulnerability affects both client and server implementations.
Install updates from vendor's website.
Vulnerable software versions
libssh: 0.8.0 - 0.9.3
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?