CVE-2018-8905 Information

Description

In LibTIFF 4.0.9 a heap-based buffer overflow occurs in the function LZWDecodeCompat in tif_lzw.c via a crafted TIFF file as demonstrated by tiff2ps.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

http://bugzilla.maptools.org/show_bug.cgi?id=2780 https://access.redhat.com/errata/RHSA-2019:2053 https://github.com/halfbitteam/POCs/tree/master/libtiff-4.08_tiff2ps_heap_overflow https://gitlab.com/libtiff/libtiff/commit/58a898cb4459055bb488ca815c23b880c242a27d https://lists.debian.org/debian-lts-announce/2018/05/msg00008.html https://lists.debian.org/debian-lts-announce/2018/05/msg00009.html https://lists.debian.org/debian-lts-announce/2018/07/msg00002.html https://usn.ubuntu.com/3864-1/ https://www.debian.org/security/2018/dsa-4349

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8