Denial of service in LibTIFF



Published: 2019-08-27 | Updated: 2022-05-21
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14973
CWE-ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		LibTIFF
Universal components / Libraries / Libraries used by multiple products

Vendor LibTIFF

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Integer overflow

EUVDB-ID: #VU20390

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14973

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in the "_TIFFCheckMalloc" and "_TIFFCheckRealloc" functions in the "tif_aux.c" file. A remote attacker can trick a victim to open a specially crafted file that contains crafted TIFF images, trigger integer overflow and crash the target application.


Mitigation

Install update from vendor's website.

Vulnerable software versions

LibTIFF: 3.4 - 4.0.10

External links

http://gitlab.com/libtiff/libtiff/merge_requests/90


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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