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AUSCERT External Security Bulletin Redistribution
ESB-2020.2394
USN-4417-1: NSS vulnerability
15 July 2020
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AusCERT Security Bulletin Summary
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Product: Network Security Service library
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Access Privileged Data -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12402
Reference: ESB-2020.2278
ESB-2020.2250
Original Bulletin:
https://usn.ubuntu.com/4417-1/
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USN-4417-1: NSS vulnerability
06 July 2020
nss vulnerability
Releases
o Ubuntu 20.04 LTS
o Ubuntu 19.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Packages
o nss - Network Security Service library
Details
Cesar Pereida, Billy Bob Brumley, Yuval Yarom, and Nicola Tuveri discovered
that NSS incorrectly handled RSA key generation. A local attacker could
possibly use this issue to perform a timing attack and recover RSA keys.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.04
o libnss3 - 2:3.49.1-1ubuntu1.2
Ubuntu 19.10
o libnss3 - 2:3.45-1ubuntu2.4
Ubuntu 18.04
o libnss3 - 2:3.35-2ubuntu2.9
Ubuntu 16.04
o libnss3 - 2:3.28.4-0ubuntu0.16.04.12
After a standard system update you need to reboot your computer to make
all the necessary changes.
References
o CVE-2020-12402
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