CVE ID:	CVE-2019-12749
Description:	dbus before 1.10.28, 1.12.x before 1.12.16, and 1.13.x before 1.13.12, as used in DBusServer in Canonical Upstart in Ubuntu 14.04 (and in some, less common, uses of dbus-daemon), allows cookie spoofing because of symlink mishandling in the reference implementation of DBUS_COOKIE_SHA1 in the libdbus library. (This only affects the DBUS_COOKIE_SHA1 authentication mechanism.) A malicious client with write access to its own home directory could manipulate a ~/.dbus- keyrings symlink to cause a DBusServer with a different uid to read and write in unintended locations. In the worst case, this could result in the DBusServer reusing a cookie that is known to the malicious client, and treating that cookie as evidence that a subsequent client connection came from an attacker-chosen uid, allowing authentication bypass.
Test IDs:	1.3.6.1.4.1.25623.1.1.2.2019.1767   1.3.6.1.4.1.25623.1.1.10.2019.0339   1.3.6.1.4.1.25623.1.0.844049   1.3.6.1.4.1.25623.1.1.4.2020.1672.1   1.3.6.1.4.1.25623.1.1.4.2019.1591.1   1.3.6.1.4.1.25623.1.0.852873   1.3.6.1.4.1.25623.1.0.883079   1.3.6.1.4.1.25623.1.1.4.2019.2820.1   1.3.6.1.4.1.25623.1.1.2.2019.1706   1.3.6.1.4.1.25623.1.1.4.2019.1597.1   1.3.6.1.4.1.25623.1.1.2.2019.1727   1.3.6.1.4.1.25623.1.0.891818   1.3.6.1.4.1.25623.1.1.4.2019.14111.1   1.3.6.1.4.1.25623.1.0.852577   1.3.6.1.4.1.25623.1.1.4.2019.1521.1   1.3.6.1.4.1.25623.1.1.2.2019.1673   1.3.6.1.4.1.25623.1.0.852604   1.3.6.1.4.1.25623.1.1.12.2019.4015.2   1.3.6.1.4.1.25623.1.1.4.2019.1595.1   1.3.6.1.4.1.25623.1.1.2.2019.2022   1.3.6.1.4.1.25623.1.0.704462   1.3.6.1.4.1.25623.1.0.876507
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2019-12749 BugTraq ID: 108751 http://www.securityfocus.com/bid/108751 Bugtraq: 20190613 [SECURITY] [DSA 4462-1] dbus security update (Google Search) https://seclists.org/bugtraq/2019/Jun/16 Debian Security Information: DSA-4462 (Google Search) https://www.debian.org/security/2019/dsa-4462 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V2CQF37O73VH2JDVX2ILX2KD2KLXLQOU/ https://security.gentoo.org/glsa/201909-08 https://www.openwall.com/lists/oss-security/2019/06/11/2 https://lists.debian.org/debian-lts-announce/2019/06/msg00005.html http://www.openwall.com/lists/oss-security/2019/06/11/2 RedHat Security Advisories: RHSA-2019:1726 https://access.redhat.com/errata/RHSA-2019:1726 RedHat Security Advisories: RHSA-2019:2868 https://access.redhat.com/errata/RHSA-2019:2868 RedHat Security Advisories: RHSA-2019:2870 https://access.redhat.com/errata/RHSA-2019:2870 RedHat Security Advisories: RHSA-2019:3707 https://access.redhat.com/errata/RHSA-2019:3707 SuSE Security Announcement: openSUSE-SU-2019:1604 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00059.html SuSE Security Announcement: openSUSE-SU-2019:1671 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00092.html SuSE Security Announcement: openSUSE-SU-2019:1750 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00026.html https://usn.ubuntu.com/4015-1/ https://usn.ubuntu.com/4015-2/