Headline
Ubuntu Security Notice USN-6371-1
Ubuntu Security Notice 6371-1 - It was discovered that libssh2 incorrectly handled memory access. An attacker could possibly use this issue to cause a crash.
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Ubuntu Security Notice USN-6371-1
September 14, 2023
libssh2 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)
Summary:
libssh2 could be made to crash if it received specially
crafted network traffic.
Software Description:
- 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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
libssh2-1 1.8.0-2.1ubuntu0.1
Ubuntu 18.04 LTS:
libssh2-1 1.8.0-1ubuntu0.1
Ubuntu 16.04 LTS (Available with Ubuntu Pro):
libssh2-1 1.5.0-2ubuntu0.1+esm2
Ubuntu 14.04 LTS (Available with Ubuntu Pro):
libssh2-1 1.4.3-2ubuntu0.2+esm3
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6371-1
CVE-2020-22218
Package Information:
https://launchpad.net/ubuntu/+source/libssh2/1.8.0-2.1ubuntu0.1
https://launchpad.net/ubuntu/+source/libssh2/1.8.0-1ubuntu0.1
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