#VU74024 NULL pointer dereference in xpdf - CVE-2022-41843

Vulnerability identifier: #VU74024

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-41843

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
xpdf
Client/Desktop applications / Office applications

Vendor: Glyph & Cog

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in convertToType0 in fofi/FoFiType1C.cc. A local user can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

xpdf: 0.2 - 4.04

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External links
https://forum.xpdfreader.com/viewtopic.php?f=3&t=42325&sid=7b08ba9a518a99ce3c5ff40e53fc6421
https://forum.xpdfreader.com/viewtopic.php?f=1&t=42344
https://www.xpdfreader.com/security-fixes.html#4.05

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?