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Category:   Application (Generic)  >   curl Vendors:   curl.haxx.se
curl Use-After-Free Memory Error in Curl_close() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1042013
SecurityTracker URL:  http://securitytracker.com/id/1042013
CVE Reference:   CVE-2018-16840   (Links to External Site)
Date:  Nov 1 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in curl. A remote user can cause denial of service conditions on the target system.

A remote user can send specially crafted data to trigger a use-after-free in closing an easy handle in the 'Curl_close()' function.

Brian Carpenter, Geeknik Labs, reported this vulnerability.

Impact:   A remote user can cause denial of service conditions.
Solution:   The vendor has issued a fix (7.62.0).

The vendor advisory is available at:

https://curl.haxx.se/docs/CVE-2018-16840.html

Vendor URL:  curl.haxx.se/docs/CVE-2018-16840.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 1 2018 (Ubuntu Issues Fix) curl Use-After-Free Memory Error in Curl_close() Lets Remote Users Deny Service
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, 18.04 LTS, and 18.10.



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