PT-2021-22625 · Pdftools · Pdftools

Published 2021-09-20 · Updated 2021-09-24 · CVE-2021-39542

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: pdftools versions prior to 20200714

Description: An issue exists in the function Font::Size() located in font.cpp, allowing an attacker to cause Denial of Service through a NULL pointer dereference.

Recommendations: For versions prior to 20200714, update to a version newer than 20200714 to resolve the issue. As a temporary workaround, consider restricting access to the Font::Size() function until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-39542

Affected Products

Pdftools

References · 3

• 🔥 https://github.com/leonhad/pdftools/issues/5 · Exploit
• https://osv.dev/vulnerability/CVE-2021-39542 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-39542 · Security Note