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AUSCERT External Security Bulletin Redistribution
ESB-2024.1758
USN-6711-1: CRM shell vulnerability
26 March 2024
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AusCERT Security Bulletin Summary
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Product: CRM shell
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2020-35459
Original Bulletin:
https://ubuntu.com/security/notices/USN-6711-1
Comment: CVSS (Max): 7.8 CVE-2020-35459 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Ubuntu
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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USN-6711-1: CRM shell vulnerability
25 March 2024
CRM shell could be made to execute arbitrary code if it received a specially
crafted input.
Releases
o Ubuntu 20.04 LTS
Packages
o crmsh - CRM shell for the pacemaker cluster manager
Details
Vincent Berg discovered that CRM shell incorrectly handled certain commands.
An local attacker could possibly use this issue to execute arbitrary code
via shell code injection to the crm history commandline.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o crmsh - 4.2.0-2ubuntu1.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-35459
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