Arch Linux Security Advisory ASA-201707-2

Severity: Critical
Date : 2017-07-03
CVE-ID : CVE-2017-9445
Package : systemd
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-329

Summary

The package systemd before version 233-6 is vulnerable to arbitrary
code execution.

Resolution

Upgrade to 233-6.

pacman -Syu “systemd>=233-6”

The problem has been fixed upstream in version 233.

Workaround

None.

Description

An out-of-bounds write was discovered in systemd-resolved when handling
specially crafted DNS responses. A remote attacker could potentially
exploit this to cause a denial of service (daemon crash) or execute
arbitrary code.

Impact

A remote attacker is able to craft a malicious DNS response to crash
systemd-resolved or execute arbitrary code on the target host.

References

https://bugs.archlinux.org/task/54619
http://seclists.org/oss-sec/2017/q2/618
https://security.archlinux.org/CVE-2017-9445