[security-alerts] FW: [SA19271] cURL/libcURL TFTP Protocol URL Parsing Buffer Overflow

["Kazennov, Vladimir" <Vladimir.Kazennov@xxxxxxxxxx>]

> 
> 
> TITLE:
> cURL/libcURL TFTP Protocol URL Parsing Buffer Overflow
> 
> SECUNIA ADVISORY ID:
> SA19271
> 
> VERIFY ADVISORY:
> http://secunia.com/advisories/19271/
> 
> CRITICAL:
> Moderately critical
> 
> IMPACT:
> System access
> 
> WHERE:
> From remote
> 
> SOFTWARE:
> cURL 7.x
> http://secunia.com/product/4691/
> 
> 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
>