Vulnerability CVE-2018-8905
Published: 2018-03-22

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.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Libtiff -> Libtiff 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 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
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