PT-2018-13921

CVE-2018-17141

Published

2018-09-20

Updated

2026-10-31

Description by

CVSS 3.1

9.8

Critical

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

Name of the Vulnerable Software and Affected Versions HylaFAX version 6.0.6 HylaFAX+ version 5.6.0

Description The issue allows remote attackers to execute arbitrary code via a dial-in session that provides a FAX page with the JPEG bit enabled. This is mishandled in the FaxModem::writeECMData() function in the faxd/CopyQuality.c++ file.

Recommendations For HylaFAX version 6.0.6, consider disabling the FaxModem::writeECMData() function until a patch is available. For HylaFAX+ version 5.6.0, restrict access to the faxd/CopyQuality.c++ file to minimize the risk of exploitation.

Exploitability

Exploit

Fix

Impacts

Researchers

Eric Sesterhenn

Luis Merino

Markus Vervier

Vendors

Affected products

Weakness enumeration

CWE-824: Access of Uninitialized Pointer