RHSA-2021:4060: Moderate: libsolv security update

Published Nov 2, 2021
·
Updated

The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.Security Fix(es): libsolv: heap-based buffer overflow in poolinstallable() in src/repo.h (CVE-2021-33928) libsolv: heap-based buffer overflow in pooldisabledsolvable() in src/repo.h (CVE-2021-33929) libsolv: heap-based buffer overflow in poolinstallablewhatprovides() in src/repo.h (CVE-2021-33930) libsolv: heap-based buffer overflow in prunetorecommended() in src/policy.c (CVE-2021-33938) 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.

Affected Software

44 affected componentsFixes available
redhat/libsolv<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-debugsource<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-debugsource<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-demo-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-demo-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-tools-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-tools-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/perl-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/perl-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/python3-solv<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/python3-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/python3-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/ruby-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/ruby-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/python3-solv<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-debugsource<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-demo-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-tools-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/perl-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/python3-solv<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/python3-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/ruby-solv-debuginfo<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-debuginfo<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-debugsource<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-demo-debuginfo<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-tools-debuginfo<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/perl-solv-debuginfo<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/python3-solv<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/python3-solv-debuginfo<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/ruby-solv-debuginfo<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-devel<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-devel<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-tools<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-devel<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-tools<0.7.16-3.el8_4
0.7.16-3.el8_4
redhat/libsolv-devel<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-tools<0.7.16-3.el8_4.aa
0.7.16-3.el8_4.aa
redhat/libsolv-tools<0.7.16-3.el8_4
0.7.16-3.el8_4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/libsolv to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  2. Upgrade

    Upgrade redhat/libsolv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  3. Upgrade

    Upgrade redhat/libsolv-debugsource to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  4. Upgrade

    Upgrade redhat/libsolv-demo-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  5. Upgrade

    Upgrade redhat/libsolv-tools-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  6. Upgrade

    Upgrade redhat/perl-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  7. Upgrade

    Upgrade redhat/python3-solv to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  8. Upgrade

    Upgrade redhat/python3-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  9. Upgrade

    Upgrade redhat/ruby-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  10. Upgrade

    Upgrade redhat/libsolv to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  11. Upgrade

    Upgrade redhat/libsolv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  12. Upgrade

    Upgrade redhat/libsolv-debugsource to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  13. Upgrade

    Upgrade redhat/libsolv-demo-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  14. Upgrade

    Upgrade redhat/libsolv-tools-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  15. Upgrade

    Upgrade redhat/perl-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  16. Upgrade

    Upgrade redhat/python3-solv to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  17. Upgrade

    Upgrade redhat/python3-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  18. Upgrade

    Upgrade redhat/ruby-solv-debuginfo to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  19. Upgrade

    Upgrade redhat/libsolv-devel to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  20. Upgrade

    Upgrade redhat/libsolv-tools to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4
  21. Upgrade

    Upgrade redhat/libsolv-devel to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa
  22. Upgrade

    Upgrade redhat/libsolv-tools to a version that resolves this vulnerability.

    Fixed in 0.7.16-3.el8_4.aa

Event History

Jun 22, 2026
Advisory Published
via Red Hat·07:00 PM
Data Sourced
via Red Hat·07:00 PM
RemedyDescriptionAffected Software
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Frequently Asked Questions

1

What is the severity of RHSA-2021:4060?

The severity of RHSA-2021:4060 is classified as important due to the presence of a heap-based buffer overflow vulnerability.

2

How do I fix RHSA-2021:4060?

To fix RHSA-2021:4060, update the libsolv package to version 0.7.16-3.el8_4 or later.

3

What are the affected packages in RHSA-2021:4060?

The affected packages in RHSA-2021:4060 include libsolv, libsolv-debuginfo, and libsolv-tools among others.

4

What is CVE-2021-33928 linked to RHSA-2021:4060?

CVE-2021-33928 is a vulnerability that describes a heap-based buffer overflow in the pool_installable() function in libsolv.

5

Is my system vulnerable if I have an outdated version of libsolv?

Yes, if you have an outdated version of libsolv prior to 0.7.16-3.el8_4, your system is vulnerable to exploitation via CVE-2021-33928.

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