Denial of service in Xpdf

1) Deadlock

EUVDB-ID: #VU79510

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-2023-3436

CWE-ID: CWE-833 - Deadlock

Exploit availability: No

Description

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

The vulnerability exists due to a deadlock on a PDF object stream whose "Length" field is itself in another object stream. A remote attacker can pass specially crafted PDF files 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: 4.00 - 4.04

CPE2.3

• cpe:2.3:a:glyph_and_cog:xpdf:4.00:*:*:*:*:*:*:*
• cpe:2.3:a:glyph_and_cog:xpdf:4.00.0:*:*:*:*:*:*:*
• cpe:2.3:a:glyph_and_cog:xpdf:4.0.1:*:*:*:*:*:*:*

External links

https://forum.xpdfreader.com/viewtopic.php?t=42618

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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