Track vulnerabilities like this one. Sign up free to get alerted when software you use is affected.
5.5

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

CVE-2021-33642 · published 3 years ago
Summary

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

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
openeuler byacc < 1.9.20200330
>= 2.0, < 2.0.20210808
cpe:2.3:a:openeuler:byacc:*:*:*:*:*:*:*:*
Original advisory text
When a file is processed, an infinite loop occurs in next_inline() of the more_curly() function.
When a file is processed, an infinite loop occurs in next_inline() of the more_curly() function.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
5.5 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
Timeline
Published20 Jan 2023
Updated31 Oct 2026
First seen29 Sep 2026
Sources
CVE-2021-33642 · NVD
Track software like this
Free during beta