CVE-2020-15396 Information

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.

CVSS Vector

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

Reference

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://bugzilla.suse.com/show_bug.cgi?id=1173521 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J52QFVREJWJ35YSEEDDRMZQ2LM2H2WE6/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y46FOVJUS5SO44A2VEKR7DXEHTI4WK5L/ https://security.gentoo.org/glsa/202007-06 https://sourceforge.net/p/hylafax/HylaFAX+/2534/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8