CVE-2020-15396

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.

CVSS v3.1 NVD

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

0.39% chance of exploitation in the next 30 days, 31st percentile

Published

2020-06-30

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://bugzilla.suse.com/show_bug.cgi?id=1173521

Security advisories

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00039.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00040.html
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00046.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00054.html
• https://security.gentoo.org/glsa/202007-06
• https://sourceforge.net/p/hylafax/HylaFAX+/2534

References

• CVE Record
• NVD entry