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Amazon Linux AMI: CVE-2020-12403: Security patch for nspr, nss-softokn, nss-util (ALAS-2021-1522)

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Amazon Linux AMI: CVE-2020-12403: Security patch for nspr, nss-softokn, nss-util (ALAS-2021-1522)

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
08/27/2020
Created
07/15/2021
Added
07/13/2021
Modified
07/13/2021

Description

A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.

Solution(s)

  • amazon-linux-upgrade--nss-softokn
  • amazon-linux-upgrade--nss-util
  • amazon-linux-upgrade-nspr

References

  • ALAS-2021-1522
  • CVE-2020-12403
  • USN-4476-1

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