CVE-2021-44568
First published: Mon Feb 21 2022(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/libsolv | <0.7.17 | 0.7.17 |
| Opensuse Libsolv | <0.7.17 |
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Reference Links
- https://github.com/openSUSE/libsolv/issues/425
- https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940
- https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995
- https://github.com/openSUSE/libsolv/commit/0077ef29eb46d2e1df2f230fc95a1d9748d49dec
- https://access.redhat.com/errata/RHSA-2022:5498
- https://access.redhat.com/security/cve/cve-2021-44568
- https://bugzilla.redhat.com/show_bug.cgi?id=2057178
Frequently Asked Questions
What is CVE-2021-44568?
CVE-2021-44568 is a vulnerability that exists in openSUSE/libsolv libsolv through 13 Dec 2020, which could cause a remote Denial of Service.
How severe is CVE-2021-44568?
CVE-2021-44568 has a severity keyword of 'medium' and a severity value of 6.5.
Which software is affected by CVE-2021-44568?
The affected software is openSUSE/libsolv libsolv version up to 0.7.17.
How can CVE-2021-44568 be fixed?
To fix CVE-2021-44568, update the openSUSE/libsolv libsolv package to version 0.7.17 or higher.
Is there any additional information available for CVE-2021-44568?
Additional information about CVE-2021-44568 can be found in the references: https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940, https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995, https://github.com/openSUSE/libsolv/issues/425
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