#VU69401 Release of invalid pointer or reference in LibTIFF - CVE-2022-2521

Vulnerability identifier: #VU69401

Vulnerability risk: Medium

CVSSv4.0: 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-2022-2521

CWE-ID: CWE-763

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
LibTIFF

Software vendor:
LibTIFF

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

The vulnerability exists due to an invalid pointer free operation within the TIFFClose() function in tif_close.c. A remote attacker can pass a specially crafted file to the application and perform a denial of service (DoS) attack.

Install updates from vendor's website.

• https://gitlab.com/libtiff/libtiff/-/issues/422
• https://gitlab.com/libtiff/libtiff/-/merge_requests/378