libssh could be made to crash if it received specially crafted network traffic.
Yasheng Yang discovered that libssh incorrectly handled AES-CTR ciphers. A remote attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service.
9 April 2020
A security issue affects these releases of Ubuntu and its derivatives:
libssh could be made to crash if it received specially crafted network traffic.
Yasheng Yang discovered that libssh incorrectly handled AES-CTR ciphers. A remote attacker could possibly use this issue to cause libssh to crash, resulting in a denial of service.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon