SB2018100607 - Input validation error in SourceForge QPDF
Published: October 6, 2018 Updated: August 8, 2020
Security Bulletin ID
SB2018100607
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2018-18020)
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
In QPDF 8.2.1, in libqpdf/QPDFWriter.cc, QPDFWriter::unparseObject and QPDFWriter::unparseChild have recursive calls for a long time, which allows remote attackers to cause a denial of service via a crafted PDF file.
Remediation
Install update from vendor's website.