IBM AIX bellmail buffer overflow
| aix-bellmail-bo (38150) |  High Risk |
Description:
IBM AIX bellmail is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the sendrmt function. By sending an overly long parameter using the "m" command, a local attacker could exploit this vulnerability to corrupt memory and execute arbitrary code on the system.
*CVSS:
| Base Score: | 6.9 |
| Access Vector: | Local |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 5.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
For AIX 5.2.0:
Apply APAR IZ05066, available from the IBM Quick Links Web site. See References.
For AIX 5.3.0:
Apply APAR IZ05065, available from the IBM Quick Links Web site. See References.
--OR--
Apply the interim fix for this vulnerability (bellmail_ifix.tar), available from the IBM AIX FTP site. See References.
References:
- IBM AIX FTP site: IBM AIX.
- IBM APAR IZ05065: POTENTIAL SECURITY ISSUE..
- IBM APAR IZ05066: POTENTIAL SECURITY ISSUE..
- IBM SECURITY ADVISORY: AIX bellmail buffer overflow vulnerability.
- iDefense PUBLIC ADVISORY: 10.30.07: IBM AIX bellmail Stack Buffer Overflow Vulnerability.
- BID-26257: IBM AIX bellmail Local Privilege Escalation Vulnerability
- CVE-2007-4623: Stack-based buffer overflow in the sendrmt function in bellmail in IBM AIX 5.2 and 5.3 allows local users to execute arbitrary code via a long parameter to the m command.
- SA27437: IBM AIX Multiple Privilege Escalation Vulnerabilities
- SECTRACK ID: 1018871: IBM AIX Various Application Buffer Overflows Let Local Users Gain Root Privileges
- VUPEN/ADV-2007-3669: IBM AIX Utilities Arguments Handling Privilege Escalation Vulnerabilities
Platforms Affected:
- IBM AIX 5.2
- IBM AIX 5.3
Reported:
Oct 25, 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.