#VU82598 Input validation error in Poppler - CVE-2022-37050

Vulnerability identifier: #VU82598

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-37050

CWE-ID: CWE-20

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 insufficient validation of user-supplied input within the PDFDoc::savePageAs() function in PDFDoc.c. A remote attacker can trick the victim to open a specially crafted PDF file and perform a denial of service (DoS) attack.

Note, the vulnerability exists due to incomplete patch for #VU16830 (CVE-2018-20662).

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Poppler: 22.01.0 - 22.07.0

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External links
https://gitlab.freedesktop.org/poppler/poppler/-/issues/1274
https://gitlab.freedesktop.org/poppler/poppler/-/commit/dcd5bd8238ea448addd102ff045badd0aca1b990
https://lists.debian.org/debian-lts-announce/2023/10/msg00022.html

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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.