CVE-2020-15396

Name	CVE-2020-15396
Description	In HylaFAX+ through 7.0.2 and HylaFAX Enterprise, the faxsetup utility calls chown on files in user-owned directories. By winning a race, a local attacker could use this to escalate his privileges to root.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	high
Debian Bugs	964198

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
hylafax (PTS)	stretch (security), stretch	3:6.0.6-7+deb9u1	vulnerable
	buster	3:6.0.6-8.1	vulnerable
	bullseye, sid	3:6.0.7-3	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
hylafax	source	(unstable)	(unfixed)			964198

[buster] - hylafax <no-dsa> (Minor issue)
[stretch] - hylafax <no-dsa> (Minor issue)
https://sourceforge.net/p/hylafax/HylaFAX+/2534/