PT-2026-24799 · Struktur Ag · Libheif

Niebelungen · Publicado 2026-02-23 · Atualizado 2026-05-28 · CVE-2026-3950

Positive Technologies (AI Summary)

CVSS v3.1

3.3

Baixa

Vetor base

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions strukturag libheif versions up to 1.21.2

Description A flaw exists in strukturag libheif, specifically within the Track::load function located in the libheif/sequences/track.cc file, related to the stsz/stts component. This can lead to an out-of-bounds read condition. The attack requires local access. An exploit for this issue is publicly available.

Recommendations Apply a patch to address this issue. Note that the available patch is currently unofficial and not yet approved.

Exploit

Correção

Buffer Overflow

Out of bounds Read

Enumeração de Fraquezas

CWE-119

CWE-125

Identificadores relacionados

BDU:2026-05076

CVE-2026-3950

ECHO-D166-5C0F-238B

OPENSUSE-SU-2026:10878-1

Produtos afetados

Libheif

Referências · 34

• 🔥 https://github.com/Niebelungen-D/pocs/tree/main/heif_dec_sequence_chunk_idx_oob · Exploit
• https://github.com/strukturag/libheif/issues/1715 · Nota
• https://github.com/strukturag/libheif/pull/1721 · Correção
• https://suse.com/security/cve/CVE-2026-32882 · Nota
• https://suse.com/security/cve/CVE-2026-3950 · Nota
• https://suse.com/security/cve/CVE-2026-47251 · Nota
• https://twitter.com/infoflowcloud/status/2031869762687426920 · Publicação no Twitter
• https://vuldb.com/?id.350382 · Nota
• https://suse.com/security/cve/CVE-2026-32738 · Nota
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-3950 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2026-47714 · Nota
• https://github.com/strukturag/libheif · Nota
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-3950 · Aviso do Fabricante
• https://suse.com/security/cve/CVE-2026-32739 · Nota
• https://cve.org/CVERecord?id=CVE-2026-3950 · Nota de Segurança