Vulnerability identifier: #VU18093

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-9903

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Poppler
Client/Desktop applications / Office applications

Vendor: Freedesktop.org

Description

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

The vulnerability exists due to incorrect processing of  dict marking in PDFDoc::markObject() function in PDFDoc.cc file when processing PDF files. A remote attacker can pass specially crafted PDF file to the affected software that invokes pdfunite binary, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Poppler: 0.74.0

---

External links
http://www.securityfocus.com/bid/107560
http://gitlab.freedesktop.org/poppler/poppler/issues/741
http://research.loginsoft.com/bugs/stack-based-buffer-overflows-in-dictfind-poppler-0-74-0/

---

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.