CVE-2021-33641

When processing files, malloc stores the data of the current line. When processing comments, malloc incorrectly accesses the released memory (use after free).

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:openeuler:byacc::::::::
	cpe:2.3:a:openeuler:byacc::::::::

History

21 Nov 2024, 06:09

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-01-20 21:15

Updated : 2025-04-03 20:15

NVD link : CVE-2021-33641

Mitre link : CVE-2021-33641

CVE.ORG link : CVE-2021-33641

JSON object : View

Products Affected

openeuler

byacc

CWE

CWE-416

Use After Free

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