CVE-2021-33641
High
Description
When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free).
SeverityHigh
CVSS7.8
Exploit probability—
ProductOpeneuler Byacc
PublishedJan 20, 2023
First seenJan 20, 2023
Weakness typeCWE-416Use after free
How to fix
Update
- openeuler byacc1.9.20200330, 2.0.20210808 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openeuler byacc | v < 1.9.20200330, 2.0 ≤ v < 2.0.20210808 | 1.9.20200330, 2.0.20210808 |
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