Bug 2248172 (CVE-2010-3872)

Summary: CVE-2010-3872 httpd: mod_fcgid: stack-based buffer overflow in fcgid_header_bucket_read() in modules/fcgid/fcgid_bucket.c
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
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Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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Fixed In Version: mod_fcgid 2.3.6 Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the mod_fcgid module of httpd. A malformed FastCGI response may result in a stack-based buffer overflow in the modules/fcgid/fcgid_bucket.c file in the fcgid_header_bucket_read() function, resulting in an application crash.
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Bug Blocks: 2244856    

Description Guilherme de Almeida Suckevicz 2023-11-06 17:32:46 UTC 
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."

Reference:
https://bz.apache.org/bugzilla/show_bug.cgi?id=49406

Upstream patch:
https://github.com/apache/httpd-mod_fcgid/commit/b1afa70840b4ab4e6fbc12ac8798b2f3ccc336b2