Amazon Linux 1 Security Advisory: ALAS-2021-1518
Advisory Release Date: 2021-07-08 18:38 Pacific
Advisory Updated Date: 2021-07-12 21:53 Pacific
A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. (CVE-2020-25648)
Affected Packages:
nss
Issue Correction:
Run yum update nss to update your system.
i686:
nss-debuginfo-3.53.1-7.85.amzn1.i686
nss-3.53.1-7.85.amzn1.i686
nss-devel-3.53.1-7.85.amzn1.i686
nss-tools-3.53.1-7.85.amzn1.i686
nss-pkcs11-devel-3.53.1-7.85.amzn1.i686
nss-sysinit-3.53.1-7.85.amzn1.i686
src:
nss-3.53.1-7.85.amzn1.src
x86_64:
nss-debuginfo-3.53.1-7.85.amzn1.x86_64
nss-tools-3.53.1-7.85.amzn1.x86_64
nss-sysinit-3.53.1-7.85.amzn1.x86_64
nss-pkcs11-devel-3.53.1-7.85.amzn1.x86_64
nss-3.53.1-7.85.amzn1.x86_64
nss-devel-3.53.1-7.85.amzn1.x86_64