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Insecure Library Loading
Highly critical

sblim-sfcb "Content-Length" Processing Two Vulnerabilities

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Release Date:  2010-06-01    Last Update:  2010-06-09    Views:  4,158

Secunia Advisory SA40018

Where:

From remote

Impact:

System access

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Two vulnerabilities have been reported in sblim-sfcb, which can be exploited by malicious people to potentially compromise a vulnerable system.

1) A vulnerability is caused due to the "getPayload()" function in httpAdapter.c not properly verifying the size value provided via the "Content-Length" header. This can be exploited to cause a heap-based buffer overflow via specially crafted HTTP requests.

2) A vulnerability is caused due to a an integer overflow within the "getPayload()" function in httpAdapter.c when receiving an overly large size via the "Content-Length" header. This can be exploited to cause a heap-based buffer overflow via specially crafted HTTP requests.

Successful exploitation requires that the "httpMaxContentLength" configuration setting is set to e.g. 0.


Solution:
Update to version 1.3.8.

Provided and/or discovered by:
Reported by the vendor.

Original Advisory:
http://seclists.org/oss-sec/2010/q2/att-244/SFCB-Content_Length_heap_overflows.txt

1) http://sourceforge.net/tracker/index.php?func=detail&aid=3001896&group_id=128809&atid=712784
http://sblim.cvs.sourceforge.net/viewvc/sblim/sfcb/httpAdapter.c?r1=1.84&r2=1.85
2) http://sourceforge.net/tracker/index.php?func=detail&aid=3001915&group_id=128809&atid=712784
http://sblim.cvs.sourceforge.net/viewvc/sblim/sfcb/httpAdapter.c?r1=1.85&r2=1.86

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: sblim-sfcb "Content-Length" Processing Two Vulnerabilities

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