Denial of service in Poppler

1) Uncontrolled recursion

EUVDB-ID: #VU81718

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-23804

CWE-ID: CWE-674 - Uncontrolled Recursion

Exploit availability: No

Description

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

The vulnerability exists due to uncontrolled recursion in pdfinfo and pdftops. A remote attacker can pass a specially crafted document to application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Poppler: 0.89.0

CPE2.3

• cpe:2.3:a:freedesktop_org:poppler:0.89.0:*:*:*:*:*:*:

External links

http://gitlab.freedesktop.org/poppler/poppler/-/issues/936
http://gitlab.freedesktop.org/poppler/poppler/-/commit/ec8a43c8df29fdd6f1228276160898ccd9401c92
http://gitlab.freedesktop.org/poppler/poppler/-/merge_requests/584

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.