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Category:   OS (Linux)  >   systemd Vendors:   Freedesktop.org
systemd resolved Buffer Overflow in dns_packet_new() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1038806
SecurityTracker URL:  http://securitytracker.com/id/1038806
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): v223 - v233
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:   The vendor has issued a source code fix, available at:

https://github.com/systemd/systemd/commit/1f3e486fa7b00cbf25ad64f33b59ea58b9fb06a7

Cause:   Boundary error

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jun 29 2017 (Ubuntu Issues Fix) systemd resolved Buffer Overflow in dns_packet_new() Lets Remote Users Execute Arbitrary Code
Ubuntu has issued a fix for Ubuntu 16.10 and 17.04.



 Source Message Contents



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