CVE-2026-44638

CVE-2026-44638 affects the libsixel SIXEL encoder/decoder. A wrong NULL check after allocation in sixel_decode_raw and sixel_decode causes a NULL pointer dereference when allocation fails, enabling a denial-of-service for callers under low-memory conditions. The issue stems from testing the addre...

UBUNTU-CVE-2019-19637

An issue was discovered in libsixel 1.8.2. There is an integer overflow in the function sixeldecoderawimpl at fromsixel.c...

PT-2019-15894 · Libsixel +1 · Libsixel +1

Name of the Vulnerable Software and Affected Versions: libsixel version 1.8.2 Description: A heap-based buffer overflow issue was found in the sixel decode raw impl function at fromsixel.c. Recommendations: For libsixel version 1.8.2, consider disabling the sixel decode raw impl function as a...

Libsixel Illegal Address Access Vulnerability

libsixel is a package that provides encoding/decoding implementations for DEC SIXEL graphics and other converter programs. An illegal address access vulnerability exists in the 'sixeldecoderawimpl' function of the fromsixel.c file in libsixel version 1.8.2, which can be exploited by an attacker t...

Libsixel Memory Disclosure Vulnerability

libsixel is a SIXEL encoder/decoder implementation. The 'sixeldecoderdecode' function in the decoder.c file, the 'imagebufferresize' function in the fromsixel.c file, and the 'sixeldecoderaw' function in the fromsixel.c file in libsixel version 1.8.1. ' function, 'imagebufferresize' function of t...

UBUNTU-CVE-2018-14072

libsixel 1.8.1 has a memory leak in sixeldecoderdecode in decoder.c, imagebufferresize in fromsixel.c, and sixeldecoderaw in fromsixel.c...