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cURL/libcURL TFTP Protocol URL Parsing Buffer Overflow
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Secunia Advisory:
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SA19271
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Release Date:
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2006-03-20
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Critical:
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Moderately critical
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Impact:
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System access
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | cURL 7.x
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| | CVE reference: | CVE-2006-1061 (Secunia mirror)
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Description:
Ulf Harnhammar has reported a vulnerability in cURL/libcURL, which potentially can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error within the parsing of a URL that contains the TFTP protocol prefix "tftp://". This can be exploited to cause a heap-based buffer overflow via a specially-crafted URL that consist of a valid hostname and a path that is longer than 512 bytes.
Successful exploitation requires that the user is e.g. tricked into using cURL with a specially-crafted URL or to use cURL with a HTTP server that redirects to a malicious tftp URL.
The vulnerability has been reported in versions 7.15.0 through 7.15.2.
Solution:
Update to version 7.15.3.
http://curl.haxx.se/download.html
Provided and/or discovered by:
Ulf Harnhammar
Original Advisory:
http://curl.haxx.se/docs/adv_20060320.html
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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4 Related Secunia Security Advisories
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1. cURL/libcURL GnuTLS Security Issue
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2. cURL/libcURL URL Parsing Off-By-One Vulnerability
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3. cURL/libcURL NTLM Username Handling Buffer Overflow Vulnerability
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4. cURL/libcURL NTLM and Kerberos Authentication Buffer Overflows
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