CVE-2020-11721

MEDIUM

libsixel 1.8.6 - Denial of Service via Uninitialized Pointer in load_png

Title source: llm
STIX 2.1

Description

load_png in loader.c in libsixel.a in libsixel 1.8.6 has an uninitialized pointer leading to an invalid call to free, which can cause a denial of service.

References (1)

Core 1
Core References
Exploit, Third Party Advisory x_refsource_misc
https://github.com/saitoha/libsixel/issues/134

Scores

CVSS v3 6.5
EPSS 0.0094
EPSS Percentile 56.0%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE
CWE-824
Status published
Products (2)
libsixel_project/libsixel 1.8.6
saitoha/libsixel 1.8.6
Published Apr 12, 2020
Tracked Since Feb 18, 2026