Fiche vulnérabilité
CVE-2026-18495 : vulnérabilité moyenne (CVSS 6.1)
Description
A flaw was found in libtiff. A heap-buffer overflow vulnerability exists in the `tiff2pdf` utility due to an integer truncation error when processing crafted BigTIFF files. An attacker can provide a specially crafted BigTIFF file, causing a 64-bit `StripByteCounts` value to be truncated to a 32-bit integer. This leads to an undersized memory allocation and a subsequent out-of-bounds memory copy, resulting in a crash and severe memory corruption.
En bref
- Sévérité
- Moyenne (CVSS 6.1)
- Vecteur CVSS
- CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 11 sept. 2026
- Dernière mise à jour
- 16 sept. 2026