NULL pointer dereference in LibTIFF

Published: 2018-01-02 13:42:23
Severity Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2017-18013
CVSSv3 5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CWE ID CWE-476
Exploitation vector Network
Public exploit Not available
Vulnerable software LibTIFF
Vulnerable software versions LibTIFF 4.0.9
Vendor URL LibTIFF

Security Advisory

1) NULL pointer dereference

Description

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

The vulnerability exists due to NULL pointer dereference error in tif_print.c within TIFFPrintDirectory() function. A remote attacker can trigger a NULL pointer dereference error and crash the affected application.

Remediation

Install update from vendor's website.

External links

http://bugzilla.maptools.org/show_bug.cgi?id=2770
https://gitlab.com/libtiff/libtiff/commit/c6f41df7b581402dfba3c19a1e3df4454c551a01

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