CVE-2017-15908

high

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.

References

https://usn.ubuntu.com/3558-1/

https://github.com/systemd/systemd/pull/7184

https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351

http://www.securitytracker.com/id/1039662

http://www.securityfocus.com/bid/101600

Details

Source: Mitre, NVD

Published: 2017-10-26

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High