CVE-2026-44638

Katalog CVE

CVSS 2.5 · Low EPSS 0,13%

Kerentanan NULL Pointer Dereference pada saitoha libsixel. Skor CVSS 3.1 2.5 (Low) menurut NVD.

Deskripsi (NVD)

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. From to 1.8.7-r1, a wrong NULL check after an allocation call in sixel_decode_raw and sixel_decode causes a NULL pointer dereference whenever the allocation fails. The check tests the address of the output parameter (always non-NULL) instead of the value the malloc returned. On allocation failure, the function continues and writes through a NULL pointer, crashing the process. This is a denial of service against any caller of these public APIs that hits a low-memory condition. This vulnerability is fixed in 1.8.7-r2.

Rincian

Terbit di NVD

14 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

2.5 (Low), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference
CWE-690: Unchecked Return Value to NULL Pointer Dereference

EPSS (30 hari)

0,13% peluang dieksploitasi; lebih tinggi dari 1,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/saitoha/libsixel/security/advisories/GHSA-wpx3-h5g8-qr3w exploit · advisory vendor