CVE-2021-44568

Name: CVE-2021-44568
Creator: NVD / NIST
Published: 2022-02-21T18:15:08.553+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.77%

Last modified Jun 17, 2026

CVE-2021-44568 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause a remote Denial of Service.. EPSS estimates a 1.77% chance of exploitation in the next 30 days.

Description

Two heap-overflow vulnerabilities exist in openSUSE/libsolv libsolv through 13 Dec 2020 in the decisionmap variable via the resolve_dependencies function at src/solver.c (line 1940 & line 1995), which could cause a remote Denial of Service.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

1.77%

75.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Opensuse	Libsolv	< 0.7.17

References

https://github.com/openSUSE/libsolv/issues/425Exploit, Issue Tracking, Third Party Advisory
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940Exploit, Third Party Advisory
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995Exploit, Third Party Advisory
https://github.com/openSUSE/libsolv/issues/425Exploit, Issue Tracking, Third Party Advisory
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940Exploit, Third Party Advisory
https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995Exploit, Third Party Advisory

Timeline

Published: Feb 21, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44568?

How severe is CVE-2021-44568?

CVE-2021-44568 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.77% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44568?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44568?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST