[SECURITY] [DSA 4462-1] dbus security update

2019-06-1320:29:10

lists.debian.org

7.1 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

3.6 Low

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:P/A:N

JSON

Debian Security Advisory DSA-4462-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
June 13, 2019 https://www.debian.org/security/faq

Package : dbus
CVE ID : CVE-2019-12749
Debian Bug : 930375

Joe Vennix discovered an authentication bypass vulnerability in dbus, an
asynchronous inter-process communication system. The implementation of
the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a
symbolic link attack. A local attacker could take advantage of this flaw
to bypass authentication and connect to a DBusServer with elevated
privileges.

The standard system and session dbus-daemons in their default
configuration are not affected by this vulnerability.

The vulnerability was addressed by upgrading dbus to a new upstream
version 1.10.28 which includes additional fixes.

For the stable distribution (stretch), this problem has been fixed in
version 1.10.28-0+deb9u1.

We recommend that you upgrade your dbus packages.

For the detailed security status of dbus please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/dbus

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

OSVersionArchitecturePackageVersionFilename
Debian8i386libdbus-1-dev< 1.8.22-0+deb8u2libdbus-1-dev_1.8.22-0+deb8u2_i386.deb
Debian8i386dbus< 1.8.22-0+deb8u2dbus_1.8.22-0+deb8u2_i386.deb
Debian9mipslibdbus-1-3-udeb< 1.10.28-0+deb9u1libdbus-1-3-udeb_1.10.28-0+deb9u1_mips.deb
Debian9i386dbus-tests< 1.10.28-0+deb9u1dbus-tests_1.10.28-0+deb9u1_i386.deb
Debian9armhfdbus-x11< 1.10.28-0+deb9u1dbus-x11_1.10.28-0+deb9u1_armhf.deb
Debian9s390xlibdbus-1-3-udeb< 1.10.28-0+deb9u1libdbus-1-3-udeb_1.10.28-0+deb9u1_s390x.deb
Debian9arm64libdbus-1-3< 1.10.28-0+deb9u1libdbus-1-3_1.10.28-0+deb9u1_arm64.deb
Debian9amd64dbus-tests< 1.10.28-0+deb9u1dbus-tests_1.10.28-0+deb9u1_amd64.deb
Debian9arm64dbus-udeb< 1.10.28-0+deb9u1dbus-udeb_1.10.28-0+deb9u1_arm64.deb
Debian9arm64libdbus-1-dev< 1.10.28-0+deb9u1libdbus-1-dev_1.10.28-0+deb9u1_arm64.deb

OS	Version	Architecture	Package	Version	Filename
Debian	8	i386	libdbus-1-dev	< 1.8.22-0+deb8u2	libdbus-1-dev_1.8.22-0+deb8u2_i386.deb
Debian	8	i386	dbus	< 1.8.22-0+deb8u2	dbus_1.8.22-0+deb8u2_i386.deb
Debian	9	mips	libdbus-1-3-udeb	< 1.10.28-0+deb9u1	libdbus-1-3-udeb_1.10.28-0+deb9u1_mips.deb
Debian	9	i386	dbus-tests	< 1.10.28-0+deb9u1	dbus-tests_1.10.28-0+deb9u1_i386.deb
Debian	9	armhf	dbus-x11	< 1.10.28-0+deb9u1	dbus-x11_1.10.28-0+deb9u1_armhf.deb
Debian	9	s390x	libdbus-1-3-udeb	< 1.10.28-0+deb9u1	libdbus-1-3-udeb_1.10.28-0+deb9u1_s390x.deb
Debian	9	arm64	libdbus-1-3	< 1.10.28-0+deb9u1	libdbus-1-3_1.10.28-0+deb9u1_arm64.deb
Debian	9	amd64	dbus-tests	< 1.10.28-0+deb9u1	dbus-tests_1.10.28-0+deb9u1_amd64.deb
Debian	9	arm64	dbus-udeb	< 1.10.28-0+deb9u1	dbus-udeb_1.10.28-0+deb9u1_arm64.deb
Debian	9	arm64	libdbus-1-dev	< 1.10.28-0+deb9u1	libdbus-1-dev_1.10.28-0+deb9u1_arm64.deb