VIR Vulnerability Intelligence Relay

CVE-2017-15908

high
Published 2017-10-26 · Modified 2026-05-13
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
7.5

Description

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.

Predictions

Exploit likelihood
83%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
suse slesaffected
ubuntu ubuntu14.04affected
ubuntu ubuntu16.04affected
debian debianbookwormfixed235-3
debian debianbullseyefixed235-3
debian debianforkyfixed235-3
debian debiansidfixed235-3
debian debiantrixiefixed235-3

Application impact
VendorProductVersionsFixed
systemd_projectsystemd223
systemd_projectsystemd224
systemd_projectsystemd225
systemd_projectsystemd226
systemd_projectsystemd227
systemd_projectsystemd228
systemd_projectsystemd229
systemd_projectsystemd230
systemd_projectsystemd231
systemd_projectsystemd232
systemd_projectsystemd233
systemd_projectsystemd234
systemd_projectsystemd235

References

CWEs

CWE-835

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.