Timo Sirainen discovered that cURL, an URL transfer library, is prone to a heap overflow vulnerability due to bad checking of the input data in the curl_easy_unescape function. The curl command line tool is not affected by this problem as it doesn't use the curl_easy_unescape function.

For the oldstable distribution (squeeze), this problem has been fixed in version 7.21.0-2.1+squeeze4. For the stable distribution (wheezy), this problem has been fixed in version 7.26.0-1+wheezy3. For the unstable distribution (sid), this problem has been fixed in version 7.31.0-1. We recommend that you upgrade your curl packages.

curl is a client to get files from servers using any of the supported protocols. The command is designed to work without user interaction or any kind of interactivity.

curl on Debian Linux

This check tests the installed software version using the apt package manager.

• http://www.debian.org/security/2013/dsa-2713.html

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Updated on 2015-03-25