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Ubuntu Security Notice USN-5744-1

Ubuntu Security Notice USN-5744-1
Posted Nov 28, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5744-1 - 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.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2017-2626
SHA-256 | db2bc6e67b5d43a988889cd7cd83c4d10ce17d1e09a37c23332d21092dc926e4

Ubuntu Security Notice USN-5744-1

Change Mirror Download
=========================================================================
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
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