#VU21450 Heap-based buffer overflow in DjVuLibre - CVE-2019-15142

Vulnerability identifier: #VU21450

Vulnerability risk: Low

CVSSv4.0: 1 [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:U/U:Clear]

CVE-ID: CVE-2019-15142

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DjVuLibre
Client/Desktop applications / Multimedia software

Vendor: DjVu

Description

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

The vulnerability exists due to a boundary error when processing DJVU files in DjVmDir.cpp in DjVuLibre. A remote attacker can create a specially crafted DJVU, trick the victim into opening it, trigger heap-based buffer overflow and crash the application using the affected library.

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

Vulnerable software versions

DjVuLibre: 3.5.27

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External links
https://sourceforge.net/p/djvu/bugs/296/
https://sourceforge.net/p/djvu/djvulibre-git/ci/970fb11a296b5bbdc5e8425851253d2c5913c45e/

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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.