CVE-2021-37529

transfig: Double-free via the free_stream function in readpics.c

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Severity

Low

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · January 13, 2022

Updated · November 22, 2025

Description

A double-free vulnerability was found in fig2dev in the free_stream() function of 'readpics.c'. This issue occurs due to freeing the memory for long file names. This flaw allows an attacker to pass a crafted file to fig2dev, causing a double-free fault that can lead to a denial of service.

Statement

Red Hat Enterprise Linux is not affected by this vulnerability as Red Hat ships fig2dev v3.2.7b and lower versions whereas it affects fig2dev v3.2.8a and upper versions.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-672 · Operation on a Resource after Expiration or Release