CVE-2021-44648
gdk-pixbuf: heap-buffer overflow when decoding the lzw compressed stream of image data
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · January 12, 2022
Updated · November 22, 2025
Description
A flaw was found in gdk-pixbuf. The vulnerability occurs due to the index overwriting in the lzw_decoder_new function, leading to a heap buffer overflow. This flaw allows an attacker to input a specially crafted GIF file, leading to a crash or code execution.
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 · 7.3CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE-125 · Out-of-bounds Read