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Category:   OS (Linux)  >   systemd Vendors:   Freedesktop.org
(Ubuntu Issues Fix) systemd resolved Buffer Overflow in dns_packet_new() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1038807
SecurityTracker URL:  http://securitytracker.com/id/1038807
CVE Reference:   CVE-2017-9445   (Links to External Site)
Date:  Jun 29 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): Ubuntu 16.10, 17.04
Description:   A vulnerability was reported in systemd. A remote user can execute arbitrary code on the target system.

A remote DNS server can return a specially crafted response via TCP to trigger a buffer overflow in the dns_packet_new() function in the 'systemd-resolved' component of systemd and execute arbitrary code on the target system.

Systems with the 'systemd-resolved' component enabled are affected.

Chris Coulson (Canonical) reported this vulnerability.

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

The Ubuntu advisory is available at:

https://www.ubuntu.com/usn/usn-3341-1/

Vendor URL:  www.ubuntu.com/usn/usn-3341-1/ (Links to External Site)
Cause:   Boundary error

Message History:   This archive entry is a follow-up to the message listed below.
Jun 29 2017 systemd resolved Buffer Overflow in dns_packet_new() Lets Remote Users Execute Arbitrary Code



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