Secunia Security Advisory - A weakness has been reported in D-Bus, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
625a2fb183a3002afc7606292d320786ac89ced40e428c1f23dc5d4490f3e134
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TITLE:
D-Bus "_dbus_validate_signature_with_reason()" Denial of Service
SECUNIA ADVISORY ID:
SA32127
VERIFY ADVISORY:
http://secunia.com/advisories/32127/
CRITICAL:
Not critical
IMPACT:
DoS
WHERE:
Local system
SOFTWARE:
D-Bus 1.x
http://secunia.com/advisories/product/12896/
DESCRIPTION:
A weakness has been reported in D-Bus, which can be exploited by
malicious, local users to cause a DoS (Denial of Service).
The weakness is caused due to an error within the
"_dbus_validate_signature_with_reason()" function when validating a
malformed signature. This can be exploited to terminate applications
using D-Bus by tricking them into validating a specially crafted
signature.
The weakness is reported in versions prior to 1.2.4.
SOLUTION:
Update to version 1.2.4.
http://www.freedesktop.org/wiki/Software/dbus#head-dad0dab297a44f1d7a3b1259cfc06b583fd6a88a
PROVIDED AND/OR DISCOVERED BY:
Reported in a D-Bus bug by schelte at wanadoo dot nl.
ORIGINAL ADVISORY:
D-Bus:
http://www.freedesktop.org/wiki/Software/dbus#head-dad0dab297a44f1d7a3b1259cfc06b583fd6a88a
freedesktop.org bug #17803:
https://bugs.freedesktop.org/show_bug.cgi?id=17803
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