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AUSCERT External Security Bulletin Redistribution
ESB-2022.2317
USN-5410-1: NSS vulnerability
12 May 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: NSS
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2020-25648
Original Bulletin:
https://ubuntu.com/security/notices/USN-5410-1
Comment: CVSS (Max): 7.5 CVE-2020-25648 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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USN-5410-1: NSS vulnerability
11 May 2022
NSS could be made to stop responding if it received a specially crafted message.
Releases
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
o nss - Network Security Service library
Details
Lenny Wang discovered that NSS incorrectly handled certain
messages. A remote attacker could possibly use this issue to cause
servers compiled with NSS to stop responding, resulting in a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o libnss3 - 2:3.49.1-1ubuntu1.7
Ubuntu 18.04
o libnss3 - 2:3.35-2ubuntu2.14
After a standard system update you need to restart any applications that
use NSS to make all the necessary changes.
References
o CVE-2020-25648
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