Buffer overflow in openSUSE Libsolv
CVE-2021-44568
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.018 (77.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 77.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/openSUSE/libsolv/issues/425 (Exploit, Third Party Advisory, Issue Tracking)
- github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1940 (Exploit, Third Party Advisory)
- github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/resolve_dependencies-1995 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-44568?
- CVE-2021-44568 is a medium-severity vulnerability in openSUSE Libsolv, classified under Out-of-bounds Write. CVSS score: 6.5/10. Published 2022-02-21.
- How severe is CVE-2021-44568?
- Medium severity. CVSS v3 base score is 6.5 out of 10.