Denial of service in Poppler

1) Resource exhaustion

EUVDB-ID: #VU18093

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-9903

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:freedesktop_org:poppler:0.74.0:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/107560
https://gitlab.freedesktop.org/poppler/poppler/issues/741
https://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.

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.