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Debian LTS Advisory ([SECURITY] [DLA 1818-1] dbus security update)

Information

Severity

Severity

Low

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

3.6

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update for the 'dbus' package(s) announced via the DSA-1818-1 advisory.

Insight

Insight

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.

Affected Software

Affected Software

'dbus' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

For Debian 8 'Jessie', this problem has been fixed in version 1.8.22-0+deb8u2. We recommend that you upgrade your dbus packages.

Common Vulnerabilities and Exposures (CVE)