PT-2020-15880 · Xpdf · Xpdf

Published 2020-09-03 · Updated 2020-09-11 · CVE-2020-24996

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Xpdf version 4.0.2

Description The issue is related to an invalid memory access in the TextString::~TextString() function, located in Catalog.cc. This can be triggered by sending a crafted pdf file to the pdftohtml binary, potentially allowing a remote attacker to cause a Denial of Service (Segmentation fault) or have unspecified other impact.

Recommendations For Xpdf version 4.0.2, consider restricting access to the pdftohtml binary to minimize the risk of exploitation until a patch is available. As a temporary workaround, avoid using the pdftohtml binary with untrusted pdf files.

Exploit

Fix

Improper Initialization

Weakness Enumeration

CWE-665

Related Identifiers

CVE-2020-24996

Affected Products

Xpdf

References · 6

• 🔥 https://forum.xpdfreader.com/viewtopic.php?f=3&t=42028 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-24996 · Security Note
• https://osv.dev/vulnerability/CVE-2020-24996 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-24996 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-24996 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-24996 · Vendor Advisory