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Red Hat Enterprise Linux 8 RHSA-2021-4060 Moderate: Libsolv Buffer Overflow

red hat
Calendar Grey November 2, 2021
Dist Redhat Esm H88
The recent security patch for RHEL 8 concerning Libsolv has been classified as moderate, tackling a series of buffer overflow vulnerabilities. Detailed information available within.
An update for libsolv is now available for Red Hat Enterprise Linux 8

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

Summary

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.

Topics%20covered

Topics Covered

security advisory buffer overflow software update Red Hat Enterprise Linux security impact moderate security issue libsolv

References

https://access.redhat.com/security/cve/CVE-2021-33928 https://access.redhat.com/security/cve/CVE-2021-33929 https://access.redhat.com/security/cve/CVE-2021-33930 https://access.redhat.com/security/cve/CVE-2021-33938 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: libsolv-0.7.16-3.el8_4.src.rpm
aarch64: libsolv-0.7.16-3.el8_4.aarch64.rpm libsolv-debuginfo-0.7.16-3.el8_4.aarch64.rpm libsolv-debugsource-0.7.16-3.el8_4.aarch64.rpm libsolv-demo-debuginfo-0.7.16-3.el8_4.aarch64.rpm libsolv-tools-debuginfo-0.7.16-3.el8_4.aarch64.rpm perl-solv-debuginfo-0.7.16-3.el8_4.aarch64.rpm python3-solv-0.7.16-3.el8_4.aarch64.rpm python3-solv-debuginfo-0.7.16-3.el8_4.aarch64.rpm ruby-solv-debuginfo-0.7.16-3.el8_4.aarch64.rpm
ppc64le: libsolv-0.7.16-3.el8_4.ppc64le.rpm libsolv-debuginfo-0.7.16-3.el8_4.ppc64le.rpm libsolv-debugsource-0.7.16-3.el8_4.ppc64le.rpm libsolv-demo-debuginfo-0.7.16-3.el8_4.ppc64le.rpm libsolv-tools-debuginfo-0.7.16-3.el8_4.ppc64le.rpm perl-solv-debuginfo-0.7.16-3.el8_4.ppc64le.rpm python3-solv-0.7.16-3.el8_4.ppc64le.rpm python3-solv-debuginfo-0.7.16-3.el8_4.ppc64le.rpm ruby-solv-debuginfo-0.7.16-3.el8_4.ppc64le.rpm
s390x: libsolv-0.7.16-3.el8_4.s390x.rpm libsolv-debuginfo-0.7.16-3.el8_4.s390x.rpm libsolv-debugsource-0.7.16-3.el8_4.s390x.rpm libsolv-demo-debuginfo-0.7.16-3.el8_4.s390x.rpm libsolv-tools-debuginfo-0.7.16-3.el8_4.s390x.rpm perl-solv-debuginfo-0.7.16-3.el8_4.s390x.rpm python3-solv-0.7.16-3.el8_4.s390x.rpm python3-solv-debuginfo-0.7.16-3.el8_4.s390x.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:4060-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4060
Issue date: 2021-11-02

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 impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory buffer overflow software update Red Hat Enterprise Linux security impact moderate security issue libsolv

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

2000699 - CVE-2021-33928 libsolv: heap-based buffer overflow in pool_installable() in src/repo.h

2000703 - CVE-2021-33929 libsolv: heap-based buffer overflow in pool_disabled_solvable() in src/repo.h

2000705 - CVE-2021-33930 libsolv: heap-based buffer overflow in pool_installable_whatprovides() in src/repo.h

2000707 - CVE-2021-33938 libsolv: heap-based buffer overflow in prune_to_recommended() in src/policy.c

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