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AUSCERT External Security Bulletin Redistribution
ESB-2021.3362
USN-5108-1: libntlm vulnerability
11 October 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: libntlm
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-17455
Reference: ESB-2020.1632
Original Bulletin:
https://ubuntu.com/security/notices/USN-5108-1
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USN-5108-1: libntlm vulnerability
08 October 2021
libntlm could be made to crash or possibly execute arbitrary code.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
o libntlm - NTLM authentication library
Details
It was discovered that Libntlm incorrectly handled specially crafted NTML
requests. An attacker could possibly use this issue to cause a denial of
service or another unspecified impact.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o libntlm0 - 1.5-2ubuntu0.1
Ubuntu 18.04
o libntlm0 - 1.4-8ubuntu0.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-17455
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