Home/CVE/In systemd 223 through 235, a remote DNS server can respond with a custom crafted DNS NSEC resource record to trigger an
CVE

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

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 · CVSS 7.5 EPSS 0.00267
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
▤

Affected Products & Versions

2
systemd project systemdall versions
canonical ubuntu linuxall versions
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumSystemd Service Creation
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Oct 2017 · 02:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

4
suse-csafopenSUSE-SU-2024:11420-1
usnUSN-3558-1
suse-csafSUSE-SU-2018:0299-1
usnUSN-3466-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/101600Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1039662Third Party AdvisoryVDB Entry
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351Issue TrackingPatchThird Party Advisory
https://github.com/systemd/systemd/pull/7184Issue TrackingPatchThird Party Advisory
https://usn.ubuntu.com/3558-1/PatchThird Party Advisory
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