#VU70715 Use of uninitialized resource in LibTIFF - CVE-2022-34266

Vulnerability identifier: #VU70715

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-34266

CWE-ID: CWE-908

Exploitation vector: Local

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 attack.

The vulnerability exists due to an invalid range may be passed as an argument to the memset() function within TIFFFetchStripThing() in tif_dirread.c when processing a malicious TIFF file. A remote attacker can trick the victim into opening a specially crafted TIFF file, trigger uninitialized usage of resources and perform a denial of service attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LibTIFF: 4.0.3-35

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External links
https://alas.aws.amazon.com/AL2/ALAS-2022-1814.html
https://bugs.gentoo.org/859433

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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