# CVE-2021-33930: libsolv: The libsolv packages provide a library for resolving package dependencies using a satisfiability algorithm.  Security...

CVE-2021-33930 is fixed in 5 products on 1 platform, first by RHSA-2021:4060, released November 2, 2021. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-33930
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: 0.0146
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 2, 2021

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libdb rocky 8 | 0:5.3.28-42.el8_4 | [RLSA-2022:5498](https://patchblox.com/security/data/fix/linux/rlsa-2022-5498.md) | Jul 5, 2022 |
| Linux | libsolv RHEL 8 | 0:0.7.16-3.el8_4 | [RHSA-2021:4060](https://patchblox.com/security/data/fix/linux/rhsa-2021-4060.md) | Nov 2, 2021 |
| Linux | libsolv ol 8 | 0:0.7.16-3.el8_4 | [ELSA-2021-4060](https://patchblox.com/security/data/fix/linux/elsa-2021-4060.md) | Nov 2, 2021 |
| Linux | libsolv-devel RHEL 8 | 0:0.7.16-3.el8_4 | [RHSA-2021:4060](https://patchblox.com/security/data/fix/linux/rhsa-2021-4060.md) | Nov 2, 2021 |
| Linux | libsolv-devel ol 8 | 0:0.7.16-3.el8_4 | [ELSA-2021-4060](https://patchblox.com/security/data/fix/linux/elsa-2021-4060.md) | Nov 2, 2021 |
| Linux | libsolv-tools RHEL 8 | 0:0.7.16-3.el8_4 | [RHSA-2021:4060](https://patchblox.com/security/data/fix/linux/rhsa-2021-4060.md) | Nov 2, 2021 |
| Linux | libsolv-tools ol 8 | 0:0.7.16-3.el8_4 | [ELSA-2021-4060](https://patchblox.com/security/data/fix/linux/elsa-2021-4060.md) | Nov 2, 2021 |
| Linux | python3-solv RHEL 8 | 0:0.7.16-3.el8_4 | [RHSA-2021:4060](https://patchblox.com/security/data/fix/linux/rhsa-2021-4060.md) | Nov 2, 2021 |
| Linux | python3-solv ol 8 | 0:0.7.16-3.el8_4 | [ELSA-2021-4060](https://patchblox.com/security/data/fix/linux/elsa-2021-4060.md) | Nov 2, 2021 |

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