D-Bus _dbus_validate_signature_with_reason() function denial of service
| dbus-dbusvalidatesignaturewithreason-dos (45701) |  Medium Risk |
Description:
D-Bus is vulnerable to a denial of service, caused by an error in the _dbus_validate_signature_with_reason() function. By persuading a victim to validate a specially-crafted signature, a remote attacker could cause the affected application to crash.
*CVSS:
| Base Score: | 4.3 |
| Access Vector: | Network |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.6 |
| Exploitability: | Functional |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of D-Bus (1.2.4 or later), available from the freedesktop Web site. See References.
References:
- freedesktop Web site: D-Bus Tutorial.
- freedesktop Web site: Reference Implementation (dbus-daemon and libdbus).
- BID-31602: D-Bus 'dbus_signature_validate()' Type Signature Denial of Service Vulnerability
- CVE-2008-3834: The dbus_signature_validate function in the D-bus library (libdbus) before 1.2.4 allows remote attackers to cause a denial of service (application abort) via a message containing a malformed signature, which triggers a failed assertion error.
- DSA-1658: dbus -- programming error
- GLSA-200901-04: D-Bus: Denial of Service
- MDVSA-2008:213: dbus
- MDVSA-2009:256: dbus
- MDVSA-2009:256-1: dbus
- RHSA-2009-0008: Moderate: dbus security update
- SA32127: D-Bus "_dbus_validate_signature_with_reason()" Denial of Service
- SECTRACK ID: 1021063: D-Bus dbus_signature_validate() Bug Lets Local Users Deny Service
- SUSE-SR:2008:027: SUSE Security Summary Report
- SUSE-SR:2011:008: SUSE Security Summary Report
- USN-653-1: D-Bus vulnerabilities
- VUPEN/ADV-2008-2762: D-Bus Signature Validation Local Denial of Service Vulnerability
Platforms Affected:
- Canonical Ubuntu 6.06 LTS
- Canonical Ubuntu 7.04
- Canonical Ubuntu 7.10
- Canonical Ubuntu 8.04 LTS
- Debian Debian Linux 4.0
- Freedesktop D-Bus 1.2.1
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2008.0
- MandrakeSoft Mandrake Linux 2008.0 X86_64
- MandrakeSoft Mandrake Linux 2008.1
- MandrakeSoft Mandrake Linux 2008.1 X86_64
- Mandriva Enterprise Server 5
- Mandriva Enterprise Server 5 X86_64
- Mandriva Linux 2009.0 X86_64
- Mandriva Linux 2009.0
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux 5.2.z EUS
Reported:
Oct 06, 2008
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.