Infinite Loop Vulnerability in Byacc from OpenEuler
CVE-2021-33642

5.5MEDIUM

Key Information:

Vendor

Openeuler

Status
Byacc
Vendor
CVE Published:
20 January 2023

What is CVE-2021-33642?

An infinite loop vulnerability exists in the Byacc parser when processing files. This issue arises from the next_inline() function within more_curly(), leading to potential software stability problems. It is crucial for users and developers to apply updates to avoid exploit scenarios that may disrupt normal operations.

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Deploy the Patch

Affected Version(s)

byacc <1.9.20200330 and <2.0.20210808

References

https://gitee.com/src-openeuler/byacc/commit/50225f48c6b5...

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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