RHSA-2021:4060 — Security Advisory

Red Hat Security Advisory: libsolv security update

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Severity

Moderate

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · November 2, 2021

Updated · June 25, 2026

Topic

An update for libsolv 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.

Description

The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.

Security Fix(es):

  • libsolv: heap-based buffer overflow in pool_installable() in src/repo.h (CVE-2021-33928)

  • libsolv: heap-based buffer overflow in pool_disabled_solvable() in src/repo.h (CVE-2021-33929)

  • libsolv: heap-based buffer overflow in pool_installable_whatprovides() in src/repo.h (CVE-2021-33930)

  • libsolv: heap-based buffer overflow in prune_to_recommended() 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.

Related CVEs

RHSA-2021:4060 — Red Hat Security Advisory: libsolv security update | PulseLinux