Buffer overflow in LibTIFF - CVE-2016-9534

Vulnerability identifier: #VU40041

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-9534

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

tif_write.c in libtiff 4.0.6 has an issue in the error code path of TIFFFlushData1() that didn't reset the tif_rawcc and tif_rawcp members. Reported as MSVR 35095, aka "TIFFFlushData1 heap-buffer-overflow."

LibTIFF
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Server for ARM
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - Extended Update Support
libtiff (Red Hat package)

Install update from vendor's website.

libtiff (Red Hat package) - addressed in versions 3.9.4-21.el6_8, 4.0.3-27.el7_3

• http://rhn.redhat.com/errata/RHSA-2017-0225.html
• http://www.debian.org/security/2017/dsa-3762
• http://www.securityfocus.com/bid/94484
• http://www.securityfocus.com/bid/94743
• https://github.com/vadz/libtiff/commit/83a4b92815ea04969d494416eaae3d4c6b338e4a#diff-5be5ce02d0dea67050d5b2a10102d1ba

• Multiple vulnerabilities in LibTIFF
• Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7 update for libtiff