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OpenAdvisories
Medium RLSA-2021:4464 1 CVE

Moderate: dnf security and bug fix update

Published Nov 9, 2021 · Updated Feb 4, 2026

Ecosystem: Rocky Linux

Summary

dnf is a package manager that allows users to manage packages on their systems. It supports RPMs, modules and comps groups & environments.

Security Fix(es):

* libdnf: Signature verification bypass via signature placed in the main RPM header (CVE-2021-3445)

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.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.

Fixed packages 3

ReleasePackageFixed in
Rocky Linux · 8 dnf 0:4.7.0-4.el8
Rocky Linux · 8 dnf-plugins-core 0:4.0.21-3.el8
Rocky Linux · 8 libdnf 0:0.63.0-3.el8

Vulnerabilities 1

  • Unscored —
    CVE-2021-3445

    A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attack…

    libdnf libdnf Debian Ubuntu

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1804234
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1818118
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1847035
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1893176
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1898293
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1904490
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1906970
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1913962
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1914827
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1918475
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1926261
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1926771
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1929163
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1929667
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1932079
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1934499
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1940345
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1951409
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1951411
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1951414
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1957280
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1961632
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1961633
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1961634
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1967454