CVE-2018-8905

MEDIUM

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.

References

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

Details

Source: MITRE

Published: 2018-03-22

Updated: 2019-08-06

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 8.8

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

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH