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AUSCERT External Security Bulletin Redistribution
ESB-2022.6179
USN-5744-1: libICE vulnerability
29 November 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: libICE
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2017-2626
Original Bulletin:
https://ubuntu.com/security/notices/USN-5744-1
Comment: CVSS (Max): 5.5 CVE-2017-2626 (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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USN-5744-1: libICE vulnerability
28 November 2022
Weak session cookies generated using libICE could allow sensitive
information to be exposed.
Releases
o Ubuntu 18.04 LTS
o Ubuntu 16.04 ESM
Packages
o 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
o libice6 - 2:1.0.9-2ubuntu0.18.04.1
o libice-dev - 2:1.0.9-2ubuntu0.18.04.1
Ubuntu 16.04
o libice6 - 2:1.0.9-1ubuntu0.16.04.1+esm1
Available with Ubuntu Pro (Infra-only)
o libice-dev - 2:1.0.9-1ubuntu0.16.04.1+esm1
Available with Ubuntu Pro (Infra-only)
In general, a standard system update will make all the necessary changes.
References
o CVE-2017-2626
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