NULL pointer dereference in LibTIFF - CVE-2016-9448
Published: January 27, 2017 / Updated: July 28, 2020
Vulnerability identifier: #VU32167
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2016-9448
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: LibTIFF
Affected software:
LibTIFF
LibTIFF
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in LibTiff 4.0.6 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by setting the tags TIFF_SETGET_C16ASCII or TIFF_SETGET_C32_ASCII to values that access 0-byte arrays. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9297. A remote attacker can perform a denial of service (DoS) attack.
How to mitigate CVE-2016-9448
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Sources
- http://bugzilla.maptools.org/show_bug.cgi?id=2593
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00017.html
- http://www.debian.org/security/2017/dsa-3762
- http://www.openwall.com/lists/oss-security/2016/11/18/15
- http://www.securityfocus.com/bid/94420
- https://security.gentoo.org/glsa/201701-16