HylaFAX: Multiple vulnerabilities
Gentoo Linux Security Advisory
||GLSA 200601-03 / hylafax
||January 06, 2006
||January 06, 2006: 01
All supported architectures
HylaFAX is vulnerable to arbitrary code execution and unauthorized access
HylaFAX is an enterprise-class system for sending and receiving
facsimile messages and for sending alpha-numeric pages.
Patrice Fournier discovered that HylaFAX runs the notify script on
untrusted user input. Furthermore, users can log in without a password
when HylaFAX is installed with the pam USE-flag disabled.
An attacker could exploit the input validation vulnerability to
run arbitrary code as the user running HylaFAX, which is usually uucp.
The password vulnerability could be exploited to log in without proper
There is no known workaround at this time.
All HylaFAX users should upgrade to the latest version:
Code Listing 3.1: Resolution
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/hylafax-4.2.3-r1"