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Category:   Application (Generic)  >   curl Vendors:   curl.haxx.se
curl FTP Pathname Heap Overflow Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1040531
SecurityTracker URL:  http://securitytracker.com/id/1040531
CVE Reference:   CVE-2018-1000120   (Links to External Site)
Date:  Mar 14 2018
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.12.3 - 7.58.0
Description:   A vulnerability was reported in curl. A remote user can execute arbitrary code on the target system.

A remote user that can control the paths that curl uses for FTP can create specially crafted path names containing the control characters '%00' to trigger a heap overflow and potentially execute arbitrary code on the target system.

Applications configured with '--ftp-method singlecwd' or the libcurl alternative 'CURLOPT_FTP_FILEMETHOD' are affected.

The vendor was notified on January 29, 2018.

Duy Phan Thanh reported this vulnerability.

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   The vendor has issued a fix (7.59.0).

The vendor advisory is available at:

https://curl.haxx.se/docs/adv_2018-9cd6.html

Vendor URL:  curl.haxx.se/docs/adv_2018-9cd6.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 15 2018 (Ubuntu Issues Fix) curl FTP Pathname Heap Overflow Lets Remote Users Execute Arbitrary Code
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 17.10.
May 25 2018 (Ubuntu Issues Fix) curl FTP Pathname Heap Overflow Lets Remote Users Execute Arbitrary Code
Ubuntu has issued a fix for Ubuntu Linux 12.04 ESM.
Jul 19 2018 (Juniper Issues Fix for Juniper Junos) curl FTP Pathname Heap Overflow Lets Remote Users Execute Arbitrary Code
Juniper has issued a fix for Juniper Junos.
Oct 30 2018 (Red Hat Issues Fix) curl FTP Pathname Heap Overflow Lets Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Nov 12 2018 (Oracle Issues Fix for Oracle Linux) curl FTP Pathname Heap Overflow Lets Remote Users Execute Arbitrary Code
Oracle has issued a fix for Oracle Linux 7.



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