PT-2021-22621 · Pdftools · Pdftools

Published 2021-09-20 · Updated 2021-09-24 · CVE-2021-39538

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 node::ObjNode::Value() located in objnode.cpp, allowing an attacker to cause Denial of Service due to 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 node::ObjNode::Value() function until a patch is available.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2021-39538

Affected Products

Pdftools

References · 3

• 🔥 https://github.com/leonhad/pdftools/issues/4 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-39538 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39538 · Vendor Advisory