Integer overflow in LibTIFF

Published: 2019-10-14 | Updated: 2019-11-10
Severity High
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2019-17546
CWE ID CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software LibTIFF Subscribe
Vendor LibTIFF

Security Advisory

This security advisory describes one high risk vulnerability.

1) Integer overflow

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-17546

CWE-ID: CWE-190 - Integer Overflow or Wraparound

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when processing RGBA images. A remote attacker can create a specially crafted RGBA image, pass it to the affected application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

LibTIFF: 4.0, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.6, 4.0.7, 4.0.8, 4.0.8-3, 4.0.9, 4.0.10

CPE External links

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16443
https://github.com/OSGeo/gdal/commit/21674033ee246f698887604c7af7ba1962a40ddf
https://gitlab.com/libtiff/libtiff/commit/4bb584a35f87af42d6cf09d15e9ce8909a839145

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.