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cURL/libcURL URL Parsing Off-By-One Vulnerability

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Release Date:  2005-12-07    Last Update:  2005-12-09    Views:  19,490

Secunia Advisory SA17907

Where:

Local system

Impact:

Unknown

Solution Status:

Vendor Patch

Software:

CVE Reference(s):

Description


Stefan Esser has reported a vulnerability in cURL/libcURL, which has an unknown impact.

The vulnerability is caused due to an off-by-one error when parsing an URL that is longer than 256 bytes. By using a specially crafted URL, a two-byte overflow is reportedly possible. This may be exploited to corrupt memory allocation structures. The vulnerability is reportedly exploitable only via a direct request to cURL and not via a redirect.

The vulnerability has been reported in version 7.15.0 and prior.

NOTE: The actual impact of this vulnerability depends on the application (e.g. PHP) that uses the cURL library.


Solution:
Update to version 7.15.1.

Further details available to Secunia VIM customers

Provided and/or discovered by:
Stefan Esser, Hardened PHP Project.

Original Advisory:
http://www.hardened-php.net/advisory_242005.109.html

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: cURL/libcURL URL Parsing Off-By-One Vulnerability

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