Apache mod_fcgid module fcgid_header_bucket_read() buffer overflow
| apache-fcgid-bo (63303) |  High Risk |
Description:
he Apache mod_fcgid module is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the fcgid_header_bucket_read() function. By sending specially-crafted FastCGO data, a local attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
*CVSS:
| Base Score: | 4.4 |
| Access Vector: | Local |
| Access Complexity: | Medium |
| Authentication: | None |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 3.3 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of mod_fcgid (2.3.6 or later), available from the Apache Software Foundation Web site. See References.
References:
- Apache Mailing List, Sun, 07 Nov 2010 21:43:40 GMT: mod_fcgid 2.3.6 is released.
- Apache Software Foundation Web site: mod_fcgid.
- BID-44900: Apache 'mod_fcgid' Module Unspecified Stack Buffer Overflow Vulnerability
- CVE-2010-3872: The fcgid_header_bucket_read function in fcgid_bucket.c in the mod_fcgid module before 2.3.6 for the Apache HTTP Server does not use bytewise pointer arithmetic in certain circumstances, which has unspecified impact and attack vectors related to untrusted FastCGI applications and a stack buffer overwrite.
- DSA-2140: libapache2-mod-fcgid -- stack overflow
- OSVDB ID: 69275: Apache mod_fcgid Module fcgid_bucket.c fcgid_header_bucket_read() Function Remote Overflow
- SA42288: Apache mod_fcgid Module fcgid_header_bucket_read() Security Issue
- VUPEN/ADV-2010-2997: Apache mod_fcgid FastCGI Application Buffer Overflow Vulnerability
Platforms Affected:
- Apache HTTP Server 2.0
- Apache HTTP Server 2.2
- Apache Software Foundation mod_fcgid 2.3
Reported:
Nov 07, 2010
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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.