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Medium RLSA-2021:0538 4 CVEs

Moderate: nss security and bug fix update

Published Feb 16, 2021 · Updated Feb 5, 2026

Summary

Network Security Services (NSS) is a set of libraries designed to support the cross-platform development of security-enabled client and server applications.

Security Fix(es):

* nss: Side channel attack on ECDSA signature generation (CVE-2020-6829)

* nss: P-384 and P-521 implementation uses a side-channel vulnerable modular inversion function (CVE-2020-12400)

* nss: CHACHA20-POLY1305 decryption with undersized tag leads to out-of-bounds read (CVE-2020-12403)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* Support key wrap/unwrap with RSA-OAEP (BZ#1896431)

* 1536bit group from RFC3526 is allowed in FIPS mode when in policy DH-MIN is set to be lower than 1536 (BZ#1896432)

* when NSS_SDB_USE_CACHE not set, after curl access https, dentry increase but never released - consider alternative algorithm for benchmarking ACCESS call in sdb_measureAccess [Rocky Linux-8] (BZ#1896933)

* Policy should allow overriding library defaults (BZ#1898702)

* KDF-self-tests-induced changes for nss in Rocky Linux 8.4 (BZ#1898953)

* nss: non-blocksize requests to IKEv1 KDF returns bogus output (BZ#1904408)

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 8 nss 0:3.53.1-17.el8_3

Vulnerabilities 4

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1826187
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1853983
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1868931
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1896431
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1896432
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1896933
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1898953