#VU74023 NULL pointer dereference in xpdf - CVE-2022-38928

Vulnerability identifier: #VU74023

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-38928

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
xpdf
Client/Desktop applications / Office applications

Vendor: Glyph & Cog

Description

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to a NULL pointer dereference error in FoFiType1C.cc:2393. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

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://www.xpdfreader.com/security-fixes.html#4.05

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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.