PT-2018-3977 · Foolabs+2 · Xpdf+2

Skysider · Published 2018-02-24 · Updated 2024-08-08 · CVE-2018-7453

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 xpdf version 4.00

Description The issue is related to infinite recursion in the AcroForm::scanField function in AcroForm.cc, which can be exploited to launch a denial of service attack via a specific pdf file due to the lack of loop checking. This can be demonstrated using pdftohtml. The vulnerability allows attackers to initiate a denial of service.

Recommendations For xpdf version 4.00, consider disabling the AcroForm::scanField function as a temporary workaround until a patch is available. Restrict access to pdf files that could potentially exploit this issue to minimize the risk of denial of service attacks.

Fix

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

ALT-PU-2024-10474

ALT-PU-2024-10804

ALT-PU-2024-7465

BDU:2024-01226

CVE-2018-7453

Affected Products

Alt Linux

Debian

Xpdf

References · 10

• https://forum.xpdfreader.com/viewtopic.php?p=814#p814 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-01226 · Security Note
• https://ubuntu.com/security/CVE-2018-7453 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-7453 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2018-7453 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-7453 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-7453 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-7453 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-7453 · Vendor Advisory
• https://xpdfreader.com/security-bug/object-loops.html · Note