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Ubuntu: USN-3341-1 (CVE-2017-9445): Systemd vulnerability

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Ubuntu: USN-3341-1 (CVE-2017-9445): Systemd vulnerability

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
06/27/2017
Created
07/25/2018
Added
06/29/2017
Modified
04/25/2018

Description

In systemd through 233, certain sizes passed to dns_packet_new in systemd-resolved can cause it to allocate a buffer that's too small. A malicious DNS server can exploit this via a response with a specially crafted TCP payload to trick systemd-resolved into allocating a buffer that's too small, and subsequently write arbitrary data beyond the end of it.

Solution(s)

  • ubuntu-upgrade-systemd

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