CVE-2021-33641
Public on 2023-01-20
Modified on 2024-02-09
Description
When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free).
Severity
Important
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | byacc | Not Affected | ||
| Amazon Linux 2 - Core | byacc | Not Affected | ||
| Amazon Linux 2023 | byacc | 2023-06-05 | ALAS2023-2023-204 | Fixed |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | CVSSv3 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |