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AUSCERT External Security Bulletin Redistribution
ESB-2021.3751
dnf security and bug fix update
10 November 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: dnf
Publisher: Red Hat
Operating System: Red Hat
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Provide Misleading Information -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3445
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:4464
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running dnf check for an updated version of the software for their
operating system.
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Red Hat Security Advisory
Synopsis: Moderate: dnf security and bug fix update
Advisory ID: RHSA-2021:4464-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4464
Issue date: 2021-11-09
CVE Names: CVE-2021-3445
=====================================================================
1. Summary:
An update for dnf, dnf-plugins-core, and libdnf is now available for Red
Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64
Red Hat Enterprise Linux CRB (v. 8) - aarch64, ppc64le, s390x, x86_64
3. Description:
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 Red Hat
Enterprise Linux 8.5 Release Notes linked from the References section.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1804234 - yum false positive advisory if module enabled
1818118 - openvswitch: yum update using wrapper file to allow for stream change fails in RHEL-8
1847035 - [modularity] modulefailsafe .yaml file is not removed after module disable/reset
1893176 - dnf aborts when running update
1898293 - repomanage --old does not list the oldest package per module
1904490 - Backtrace when performing "yum module remove --all perl:common"
1906970 - dnf history wrong output if piped through more or redirected to file
1913962 - "dnf needs-restarting -r" work incorrectly inside systemd-nspawn containers
1914827 - [RHEL8] dnf reposync implicitly downloads source rpms in spite of no --source option
1918475 - dnf --security pulling in packages without security advisory
1926261 - dnf should not allow an installonly_limit less than 2
1926771 - dnf does not recognize scratch modules NSVC
1929163 - problem with transaction() hook
1929667 - Typos in dnf API documentation
1932079 - CVE-2021-3445 libdnf: Signature verification bypass via signature placed in the main RPM header
1934499 - dnf autoremove wants to remove "kernel-modules-extra" if you have a rawhide kernel installed
1940345 - ip_resolve, timeout, username, password options are ignored for downloading remote "rpm"
1951409 - Rebase libdnf to >= 0.55.2
1951411 - Rebase dnf to >= 4.5.2
1951414 - Rebase dnf-plugins-core to >= 4.0.21
1957280 - DNF with versionlock silences a conflict due to a provide
1961632 - [dnf] RHEL 8.5 Tier 0 Localization
1961633 - [dnf-plugins-core] RHEL 8.5 Tier 0 Localization
1961634 - [libdnf] RHEL 8.5 Tier 0 Localization
1967454 - Backport improvements of dnf signature checking using rpmkeys
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
dnf-4.7.0-4.el8.src.rpm
dnf-plugins-core-4.0.21-3.el8.src.rpm
libdnf-0.63.0-3.el8.src.rpm
aarch64:
libdnf-0.63.0-3.el8.aarch64.rpm
libdnf-debuginfo-0.63.0-3.el8.aarch64.rpm
libdnf-debugsource-0.63.0-3.el8.aarch64.rpm
python3-hawkey-0.63.0-3.el8.aarch64.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.aarch64.rpm
python3-libdnf-0.63.0-3.el8.aarch64.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.aarch64.rpm
noarch:
dnf-4.7.0-4.el8.noarch.rpm
dnf-automatic-4.7.0-4.el8.noarch.rpm
dnf-data-4.7.0-4.el8.noarch.rpm
dnf-plugins-core-4.0.21-3.el8.noarch.rpm
python3-dnf-4.7.0-4.el8.noarch.rpm
python3-dnf-plugin-post-transaction-actions-4.0.21-3.el8.noarch.rpm
python3-dnf-plugin-versionlock-4.0.21-3.el8.noarch.rpm
python3-dnf-plugins-core-4.0.21-3.el8.noarch.rpm
yum-4.7.0-4.el8.noarch.rpm
yum-utils-4.0.21-3.el8.noarch.rpm
ppc64le:
libdnf-0.63.0-3.el8.ppc64le.rpm
libdnf-debuginfo-0.63.0-3.el8.ppc64le.rpm
libdnf-debugsource-0.63.0-3.el8.ppc64le.rpm
python3-hawkey-0.63.0-3.el8.ppc64le.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.ppc64le.rpm
python3-libdnf-0.63.0-3.el8.ppc64le.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.ppc64le.rpm
s390x:
libdnf-0.63.0-3.el8.s390x.rpm
libdnf-debuginfo-0.63.0-3.el8.s390x.rpm
libdnf-debugsource-0.63.0-3.el8.s390x.rpm
python3-hawkey-0.63.0-3.el8.s390x.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.s390x.rpm
python3-libdnf-0.63.0-3.el8.s390x.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.s390x.rpm
x86_64:
libdnf-0.63.0-3.el8.i686.rpm
libdnf-0.63.0-3.el8.x86_64.rpm
libdnf-debuginfo-0.63.0-3.el8.i686.rpm
libdnf-debuginfo-0.63.0-3.el8.x86_64.rpm
libdnf-debugsource-0.63.0-3.el8.i686.rpm
libdnf-debugsource-0.63.0-3.el8.x86_64.rpm
python3-hawkey-0.63.0-3.el8.x86_64.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.i686.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.x86_64.rpm
python3-libdnf-0.63.0-3.el8.x86_64.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.i686.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.x86_64.rpm
Red Hat Enterprise Linux CRB (v. 8):
aarch64:
libdnf-debuginfo-0.63.0-3.el8.aarch64.rpm
libdnf-debugsource-0.63.0-3.el8.aarch64.rpm
libdnf-devel-0.63.0-3.el8.aarch64.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.aarch64.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.aarch64.rpm
ppc64le:
libdnf-debuginfo-0.63.0-3.el8.ppc64le.rpm
libdnf-debugsource-0.63.0-3.el8.ppc64le.rpm
libdnf-devel-0.63.0-3.el8.ppc64le.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.ppc64le.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.ppc64le.rpm
s390x:
libdnf-debuginfo-0.63.0-3.el8.s390x.rpm
libdnf-debugsource-0.63.0-3.el8.s390x.rpm
libdnf-devel-0.63.0-3.el8.s390x.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.s390x.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.s390x.rpm
x86_64:
libdnf-debuginfo-0.63.0-3.el8.i686.rpm
libdnf-debuginfo-0.63.0-3.el8.x86_64.rpm
libdnf-debugsource-0.63.0-3.el8.i686.rpm
libdnf-debugsource-0.63.0-3.el8.x86_64.rpm
libdnf-devel-0.63.0-3.el8.i686.rpm
libdnf-devel-0.63.0-3.el8.x86_64.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.i686.rpm
python3-hawkey-debuginfo-0.63.0-3.el8.x86_64.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.i686.rpm
python3-libdnf-debuginfo-0.63.0-3.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2021-3445
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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