#VU72594 Out-of-bounds read in LibTIFF - CVE-2023-0798

Vulnerability identifier: #VU72594

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-0798

CWE-ID: CWE-125

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 boundary condition within the tiffcrop() function in tools/tiffcrop.c. A remote attacker can pass a specially crafted TIFF file to the application, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's repository.

Vulnerable software versions

LibTIFF: 3.4 - 4.6.1

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External links
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0798.json
https://gitlab.com/libtiff/libtiff/-/commit/afaabc3e50d4e5d80a94143f7e3c997e7e410f68
https://gitlab.com/libtiff/libtiff/-/issues/492

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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.