CVE-2017-15908

Description

In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an infinite loop in the dns_packet_read_type_window() function of the 'systemd-resolved' service and cause a DoS of the affected service.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.35%
Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1039662 third party advisory vdb entry
http://www.securityfocus.com/bid/101600 third party advisory vdb entry
https://github.com/systemd/systemd/pull/7184 patch third party advisory issue tracking
https://usn.ubuntu.com/3558-1/ patch vendor advisory third party advisory
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351 patch third party advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2017-15908?
CVE-2017-15908 has been scored as a high severity vulnerability.
How to fix CVE-2017-15908?
To fix CVE-2017-15908, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-15908 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-15908 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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