Red Hat Security Advisory: nss and nspr security, bug fix, and enhancement update
Affects Red HatSource GCVE Database
0
Severity
HighRated by Threat Radar
Data as of 13 Nov 2026, 18:37 UTC
What to do
AI-suggested
Upgrade NSS to version 3.13.6 and NSPR to version 4.9.2 as provided by Red Hat. After installation, restart all applications using NSS and NSPR to apply the changes. This update renders the mis-issued certificates untrusted and addresses related security issues.
Description
A Certificate Authority mis-issued two intermediate certificates that could be used for man-in-the-middle attacks across SSL, S/MIME, and code signing. Red Hat released updated NSS (3.13.6) and NSPR (4.9.2) packages to mark these certificates as untrusted and provide additional bug fixes and enhancements. Users must upgrade and restart applications to apply the changes.
References
- access.redhat.com/errata/RHSA-2013:0214 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- mozilla.org/security/announce/2013/mfsa2013-20.html (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=890605 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=893371 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=893372 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0214.json (opens in a new tab)
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