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Category:   Application (Generic)  >   curl Vendors:   curl.haxx.se
(Ubuntu Issues Fix) libcurl Integer Overflow in Escape Functions May Let Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1037198
SecurityTracker URL:  http://securitytracker.com/id/1037198
CVE Reference:   CVE-2016-7167   (Links to External Site)
Date:  Nov 4 2016
Impact:   Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via local system, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): libcurl 7.11.1 - 7.50.2
Description:   A vulnerability was reported in libcurl. A user can execute arbitrary code on the target system.

A user can supply a specially crafted length parameter value to certain libcurl functions to trigger an integer overflow and execute arbitrary code on the target system.

The curl_escape(), curl_easy_escape(), curl_unescape(), and curl_easy_unescape() functions are affected.

The specific impact depends on the application using libcurl.

The curl command line tool is not affected.

The Mitre CVE Assignment Team reported this vulnerability.

Impact:   A user can execute arbitrary code on the target system.
Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-3123-1

Vendor URL:  www.ubuntu.com/usn/usn-3123-1 (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  12.04 LTS, 14.04 LTS, 16.04 LTS, 16.10

Message History:   This archive entry is a follow-up to the message listed below.
Sep 15 2016 libcurl Integer Overflow in Escape Functions May Let Users Execute Arbitrary Code on the Target System



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