1. Ubuntu Security Notices
  2. USN-6371-1

USN-6371-1: libssh2 vulnerability

Publication date

14 September 2023

Overview

libssh2 could be made to crash if it received specially crafted network traffic.

Releases

Packages

  • libssh2 - Client-side C library implementing the SSH2 protocol

Details

It was discovered that libssh2 incorrectly handled memory
access. An attacker could possibly use this issue to cause
a crash.

It was discovered that libssh2 incorrectly handled memory
access. An attacker could possibly use this issue to cause
a crash.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
20.04 focal libssh2-1 –  1.8.0-2.1ubuntu0.1
18.04 bionic libssh2-1 –  1.8.0-1ubuntu0.1
16.04 xenial libssh2-1 –  1.5.0-2ubuntu0.1+esm2  
14.04 trusty libssh2-1 –  1.4.3-2ubuntu0.2+esm3  

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References

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