Apple Mac OS X vpnd denial of service
| macos-vpnd-dos (38855) |  Medium Risk |
Description:
Apple Mac OS X virtual private network daemon (vpnd) is vulnerable to a denial of service, caused by an arithmetic exception error in the accept_connections() function. By sending a specially-crafted packet, a remote attacker could exploit this vulnerability to crash the affected service.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Apple Mac OS X (10.5.4 or later), available from the Apple Mac OS X Web site. See References.
References:
- Apple Mac OS X Web site: About the security content of Security Update 2008-004 and Mac OS X 10.5.4.
- Apple Mac OS X Web site: Apple - Mac OS X.
- BID-26699: Apple Mac OS X VPND Remote Denial of Service Vulnerability
- CVE-2007-6276: The accept_connections function in the virtual private network daemon (vpnd) in Apple Mac OS X 10.5 before 10.5.4 allows remote attackers to cause a denial of service (divide-by-zero error and daemon crash) via a crafted load balancing packet to UDP port 4112.
- OSVDB ID: 40278: Apple Mac OS X vpnd accept_connections Function Crafted UDP Packet Remote DoS
- SA27938: Mac OS X vpnd Denial of Service Vulnerability
- SA30802: Apple Mac OS X Security Update Fixes Multiple Vulnerabilities
- SECTRACK ID: 1019052: Mac OS X vpnd Bug Lets Remote Users Deny Service
- VUPEN/ADV-2007-4145: Apple Mac OS X VPN Daemon Connection Handling Denial of Service
- VUPEN/ADV-2008-1981: Apple Mac OS X Command Execution and Security Bypass Issues
Platforms Affected:
- Apple Mac OS X 10.5
Reported:
Dec 04, 2007
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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.