CVEvulnerability
CVE-2021-33641
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-01-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free).
Affected configurations
• openeuler byacc (< 1.9.20200330)
• openeuler byacc (>= 2.0 < 2.0.20210808)
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://gitee.com/src-openeuler/byacc/commit/50225f48c6b53e9d7c936681a06682404cb8ec4d Permissions Required, Third Party Advisory
- https://gitee.com/src-openeuler/byacc/commit/50225f48c6b53e9d7c936681a06682404cb8ec4d Permissions Required, Third Party Advisory