Multiple vulnerabilities in Freedesktop Poppler

Published: 2023-08-21

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-36024 CVE-2020-36023
CWE-ID	CWE-476 CWE-835
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Poppler Client/Desktop applications / Office applications
Vendor	Freedesktop.org

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) NULL pointer dereference

EUVDB-ID: #VU79770

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-2020-36024

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the FoFiType1C::convertToType1() function. A remote attacker can pass specially crafted PDF file to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Poppler: 20.08.0 - 20.12.1

External links

http://gitlab.freedesktop.org/poppler/poppler/-/issues/1016
http://lists.debian.org/debian-lts-announce/2023/08/msg00017.html

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.

2) Infinite loop

EUVDB-ID: #VU79769