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Secunia Security Advisory 32127

Secunia Security Advisory 32127
Posted Oct 11, 2008
Authored by Secunia | Site secunia.com

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).

tags | advisory, denial of service, local
SHA-256 | 625a2fb183a3002afc7606292d320786ac89ced40e428c1f23dc5d4490f3e134

Secunia Security Advisory 32127

Change Mirror Download
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Do you need accurate and reliable IDS / IPS / AV detection rules?

Get in-depth vulnerability details:
http://secunia.com/binary_analysis/sample_analysis/

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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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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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