Vulnerability in Systemd Project
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.236 (97.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.236 · newest: 0.236 · change: 0.000
Affected products
- Systemd Project — versions 223, 224, 225
- Canonical Ubuntu Linux — versions 14.04, 16.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1039662 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/101600 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/systemd/systemd/pull/7184 (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3558-1/ (vendor-advisory, Patch, Third Party Advisory)
- bugs.launchpad.net/ubuntu/+source/systemd/+bug/1725351 (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-15908?
- CVE-2017-15908 is a high-severity vulnerability in Systemd Project, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2017-10-26.
- How severe is CVE-2017-15908?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-15908 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.