Vulnerability · Published Sep 2, 2021 · Assigned by mitre
CVE-2021-33938
High 7.5
In plain English
A high-severity security flaw in the libsolv-devel package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 73% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.4%top 27.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows attackers to cause a Denial of Service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libsolv-devel | 0.7.16-3.el8_4 | ALSA-2021:4060 |
| AlmaLinux:8 | libsolv-tools | 0.7.16-3.el8_4 | ALSA-2021:4060 |
| Debian:12 | libsolv | 0.7.17-1 | DEBIAN-CVE-2021-33938 |
| Debian:13 | libsolv | 0.7.17-1 | DEBIAN-CVE-2021-33938 |
| Debian:14 | libsolv | 0.7.17-1 | DEBIAN-CVE-2021-33938 |
| Rocky Linux:8 | libdb | 0:5.3.28-42.el8_4 | RLSA-2022:5498 |
| Rocky Linux:8 | libsolv | 0:0.7.16-3.el8_4 | RLSA-2021:4060 |
Affected products (as reported)
References
- https://github.com/openSUSE/libsolv/issues/420 x_refsource_MISC