IBM AIX bos.rte.tty and bos.rte.libc denial of service

aix-bosrte-dos (74134)

Medium Risk

Description:

IBM AIX is vulnerable to a denial of service, caused missing sanity checks in the bos.rte.tty and bos.rte.libc libraries. A local attacker could exploit this vulnerability via a specially-crafted system call to cause the system to crash.

*CVSS:

Base Score:	4.9
Access Vector:	Local
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Complete
Temporal Score:	3.6
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Denial of Service

Remedy:

Refer to the IBM SECURITY ADVISORY for patch, upgrade or suggested workaround information. See References.

References:

• IBM SECURITY ADVISORY Thu Jul 26 12:59:02 CDT 2012: Vulnerability in AIX system call.
• BID-54706: IBM AIX and Virtual I/O Server 'dupmsg' System Call Local Denial of Service Vulnerability
• CVE-2012-0723: The kernel in IBM AIX 5.3, 6.1, and 7.1, and VIOS 2.2.1.4-FP-25 SP-02, does not properly implement the dupmsg system call, which allows local users to cause a denial of service (system crash) via a crafted application.
• OSVDB ID: 84225: IBM Multiple Product dupmsg Kernel Extension Call Exportation Local DoS
• SA50003: IBM AIX and Virtual I/O Server "dupmsg" Denial of Service Vulnerability

Platforms Affected:

• IBM AIX 5.3
• IBM AIX 6.1
• IBM AIX 7.1

Reported:

Jul 26, 2012

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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this

Return to the main page

* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.

About IBM Internet Security Systems

IBM Internet Security Systems is a trusted security advisor to thousands of the world's leading businesses and governments, helping to provide pre-emptive protection for networks, desktops and servers. The IBM Proventia? integrated security platform is designed to automatically protect against both known and unknown threats, helping to keep networks up and running and shield customers from online attacks before they impact business assets. IBM Internet Security Systems products and services are based on the proactive security intelligence of its X-Force? research and development team ? an unequivocal world authority in vulnerability and threat research. The IBM Internet Security Systems product line is also complemented by comprehensive Managed Security Services and Professional Security Services. For more information, visit the IBM Internet Security Systems Web site at www.iss.net or call 800-776-2362.