Ubuntu Security Notice USN-5744-1
November 28, 2022
libice vulnerability
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.04 LTS
– Ubuntu 16.04 ESM
Summary:
Weak session cookies generated using libICE could allow sensitive
information to be exposed.
Software Description:
– libice: X11 Inter-Client Exchange library (development headers)
Details:
It was discovered that libICE was using a weak mechanism to generate the
session cookies. A local attacker could possibly use this issue to perform
a privilege escalation attack.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
libice-dev 2:1.0.9-2ubuntu0.18.04.1
libice6 2:1.0.9-2ubuntu0.18.04.1
Ubuntu 16.04 ESM:
libice-dev 2:1.0.9-1ubuntu0.16.04.1+esm1
libice6 2:1.0.9-1ubuntu0.16.04.1+esm1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5744-1
CVE-2017-2626
Package Information:
https://launchpad.net/ubuntu/+source/libice/2:1.0.9-2ubuntu0.18.04.1
