What is CVE-2021-33642?

CVE-2021-33642 is a medium-severity vulnerability in Openeuler Byacc, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2023-01-20.

How severe is CVE-2021-33642?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Openeuler Byacc

CVE-2021-33642

When a file is processed, an infinite loop occurs in next_inline() of the more_curly() function.

EPSS: 0.002 (12.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Openeuler Byacc
N/a Byacc — versions <1.9.20200330 and <2.0.20210808

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

securities@openeuler.org (Permissions Required, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33642?: CVE-2021-33642 is a medium-severity vulnerability in Openeuler Byacc, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 5.5/10. Published 2023-01-20.
How severe is CVE-2021-33642?: Medium severity. CVSS v3 base score is 5.5 out of 10.