CVE-2021-33642: When a file is processed, an infinite loop occurs in next_inline() of the more_curly() function

Medium severity · published Jan 20, 2023

CVE-2021-33642

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

5.5

CVSS

0.2%

EPSS

On KEV

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack vector

Local

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

None

Integrity

None

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.2% · higher than 13% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

<1.9.20200330 and <2.0.20210808 · source: vendor, NVD

Affected product

byacc

References