UBUNTU-CVE-2017-15908

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2017-15908
Downstream
USN-3558-1
Published: 26 Oct 2017, 00:00
Last modified:22 Apr 2026, 11:19

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Oct 2017, 00:00
Published
Vulnerability first disclosed
22 Apr 2026, 11:19
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Systems

  • ubuntu•systemd

    < 229-4ubuntu21.1

References (4)