CVE-2019-12749

Public on 2019-07-17
Modified on 2019-07-25
Description
A flaw was found in dbus. The implementation of DBUS_COOKIE_SHA1 is susceptible to a symbolic link attack. A malicious client with write access to its own home directory could manipulate a ~/.dbus-keyrings symlink to cause the DBusServer to read and write in unintended locations resulting in an authentication bypass. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Severity
Important
CVSS v3 Base Score
7.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 dbus 2019-07-17 23:54 ALAS-2019-1246

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv2 3.6 AV:L/AC:L/Au:N/C:P/I:P/A:N
NVD CVSSv3 7.1 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N