Main Vulnerability Database Vulnerabilities #VU15682

Reachable Assertion in LibTIFF - CVE-2017-13727

Published: November 1, 2018

Vulnerability identifier: #VU15682

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-13727

CWE-ID: CWE-617

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion abort in the function TIFFWriteDirectoryTagSubifd() in LibTIFF 4.0.8, related to tif_dirwrite.c and a SubIFD tag. A specially crafted input will lead to a remote denial of service attack.

Affected software

LibTIFF
tiff (Debian package)

How to mitigate CVE-2017-13727

Install updates from vendor's website.

tiff (Debian package) - update to 4.0.8-2+deb9u2

External References

http://bugzilla.maptools.org/show_bug.cgi?id=2728
https://usn.ubuntu.com/3602-1/
https://www.debian.org/security/2018/dsa-4100

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