Vulnerability identifier: #VU63794

Vulnerability 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-2022-0907

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibTIFF
Universal components / Libraries / Libraries used by multiple products

Vendor: LibTIFF

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 tiffcrop in libtiff. A remote attacker can trigger denial of service conditions via a crafted tiff file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

LibTIFF: 3.9.6 - 4.3.0

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External links
http://gitlab.com/libtiff/libtiff/-/merge_requests/314
http://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-0907.json
http://gitlab.com/libtiff/libtiff/-/issues/392
http://www.debian.org/security/2022/dsa-5108

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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.