#VU36243 Input validation error in MuPDF - CVE-2019-6130

Vulnerability identifier: #VU36243

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-6130

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MuPDF
Client/Desktop applications / Multimedia software

Vendor: Artifex Software, Inc.

Description

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

Artifex MuPDF 1.14.0 has a SEGV in the function fz_load_page of the fitz/document.c file, as demonstrated by mutool. This is related to page-number mishandling in cbz/mucbz.c, cbz/muimg.c, and svg/svg-doc.c.

Mitigation
Install update from vendor's website.

Vulnerable software versions

MuPDF: 1.14.0

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External links
https://www.securityfocus.com/bid/106558
https://bugs.ghostscript.com/show_bug.cgi?id=700446
https://lists.debian.org/debian-lts-announce/2019/06/msg00027.html
https://lists.debian.org/debian-lts-announce/2020/07/msg00019.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CNJNEX5EW6YH5OARXXSSXW4HHC5PIBSY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEK2EHVNREJ7XZMFF2MXRWKIF4IBHPNE/

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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.