Debian Security Advisory
DLA-3634-1 nss -- LTS security update
- Date Reported:
- 28 Oct 2023
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2020-25648, CVE-2023-4421.
- More information:
Multiple vulnerabilities were found in nss, a set of libraries designed to support cross-platform development of security-enabled client and server applications.
A flaw was discovered in how NSS handles CipherChangeSpec messages in TLS 1.3. It could allow an attacker to send multiple CCS messages to servers compiled against NSS, causing denial-of-service.
A fuzzing project discovered vulnerabilities to Bleichenbacher timing attacks in NSS's facilities for RSA cryptography.
For Debian 10 buster, these problems have been fixed in version 2:3.42.1-1+deb10u7.
We recommend that you upgrade your nss packages.
For the detailed security status of nss please refer to its security tracker page at: https://security-tracker.debian.org/tracker/nss
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS