VulnerabilityModified

CVE-2017-15908

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.

HIGH 7.5EPSS 23.6%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 23.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

CVSS 3.1: 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 23.63% probability · 98th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-835
Affected: systemd project/systemd · canonical/ubuntu linux
Source: cve@mitre.org

EPSS trend

EPSS 23.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.