CVE-2017-15908

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-835

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://www.securityfocus.com/bid/101600Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039662Third Party Advisory, VDB Entry
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351Issue Tracking, Patch, Third Party Advisory
https://github.com/systemd/systemd/pull/7184Issue Tracking, Patch, Third Party Advisory
https://usn.ubuntu.com/3558-1/Patch, Third Party Advisory
http://www.securityfocus.com/bid/101600Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039662Third Party Advisory, VDB Entry
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351Issue Tracking, Patch, Third Party Advisory
https://github.com/systemd/systemd/pull/7184Issue Tracking, Patch, Third Party Advisory
https://usn.ubuntu.com/3558-1/Patch, Third Party Advisory

Timeline

Published: Oct 26, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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