RHSA-2021:3572MediumCVSS 7.5

Red Hat Security Advisory: nss and nspr security, bug fix, and enhancement update

Published
September 21, 2021
Last Modified
November 5, 2026

🔗 CVE IDs covered (1)

CVE-2020-25648 →

📋 Description

CVE-2020-25648 — nss: TLS 1.3 CCS flood remote DoS Attack

🎯 Affected products106

  • Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-0:4.32.0-1.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-0:4.32.0-1.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-0:4.32.0-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-0:4.32.0-1.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-0:4.32.0-1.el8_4.src as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-0:4.32.0-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debuginfo-0:4.32.0-1.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debuginfo-0:4.32.0-1.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debuginfo-0:4.32.0-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debuginfo-0:4.32.0-1.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debuginfo-0:4.32.0-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debugsource-0:4.32.0-1.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debugsource-0:4.32.0-1.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debugsource-0:4.32.0-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debugsource-0:4.32.0-1.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-debugsource-0:4.32.0-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-devel-0:4.32.0-1.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-devel-0:4.32.0-1.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-devel-0:4.32.0-1.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-devel-0:4.32.0-1.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nspr-devel-0:4.32.0-1.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-0:3.67.0-6.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-0:3.67.0-6.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-0:3.67.0-6.el8_4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-0:3.67.0-6.el8_4.s390x as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-0:3.67.0-6.el8_4.src as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-0:3.67.0-6.el8_4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-debuginfo-0:3.67.0-6.el8_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • nss-debuginfo-0:3.67.0-6.el8_4.i686 as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • +76 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, applications using NSS (for example, Firefox) must be restarted for this update to take effect. After installing this update, applications using NSPR (for example, Firefox) must be restarted for this update to take effect.

🔗 References (13)