Vulnerability DatabaseCVE-2017-15908
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CVE-2017-15908
Published:October 26, 2017
Updated:May 16, 2026
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.
Related Resources (7)
http://www.securityfocus.com/bid/101600
https://usn.ubuntu.com/3558-1/
https://github.com/systemd/systemd/pull/7184
https://security-tracker.debian.org/tracker/CVE-2017-15908
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-15908
http://www.securitytracker.com/id/1039662
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Loop with Unreachable Exit Condition ('Infinite Loop')
CWE-835
EPSS
Base Score:
0.27