Vulnerability · Published Jan 20, 2023 · Assigned by openEuler

CVE-2021-33642

Medium 5.5

In plain English

A medium-severity infinite loop in byacc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 14% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 86.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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

Affected products (as reported)

VendorProductVersions
n/a byacc <1.9.20200330 and <2.0.20210808

Weakness: CWE-835 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References