RHSA-2021:4060 — Security Advisory
Red Hat Security Advisory: libsolv security update
Severity
ModerateRed Hat Product Security
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)
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libsolv: heap-based buffer overflow in pool_disabled_solvable() in src/repo.h (CVE-2021-33929)
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libsolv: heap-based buffer overflow in pool_installable_whatprovides() in src/repo.h (CVE-2021-33930)
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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.