#VU19555 Out-of-bounds read in xpdf - CVE-2019-12493

Vulnerability identifier: #VU19555

Vulnerability risk: Low

CVSSv4.0: 1.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-12493

CWE-ID: CWE-125

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 perform denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the PostScriptFunction::transform() function in Function.cc. A remote attacker can create a specially crafted PDF file, trick the victim into opening it, trigger stack-based out-of-bounds read error and crash the application.

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

Vulnerable software versions

xpdf: 4.01.01

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External links
https://forum.xpdfreader.com/viewtopic.php?f=3&t=41806

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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. However, proof of concept for this vulnerability is available.