Loop with Unreachable Exit Condition ('Infinite Loop') Affecting systemd package, versions <235-3
Threat Intelligence
EPSS
95.51% (100th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-SYSTEMD-527562
- published 26 Oct 2017
- disclosed 26 Oct 2017
Introduced: 26 Oct 2017
CVE-2017-15908 Open this link in a new tabHow to fix?
Upgrade Debian:11 systemd to version 235-3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
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://security-tracker.debian.org/tracker/CVE-2017-15908
- https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351
- https://github.com/systemd/systemd/pull/7184
- http://www.securityfocus.com/bid/101600
- http://www.securitytracker.com/id/1039662
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-15908
- https://usn.ubuntu.com/3558-1/
CVSS Scores
version 3.1