vulnwire
7.5high

CVE-2017-15908in critical feed

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 t…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.1 · NVD
CISA KEV
No
not known exploited
EPSS
23.6%
percentile 98%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

23.63% probability of exploitation in the next 30 days, higher than 98% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.17.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition

References

  • securitytracker.com /id/1039662 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/101600 · vdb-entry, x_refsource_BID, x_transferred
  • github.com /systemd/systemd/pull/7184 · x_refsource_CONFIRM, x_transferred
  • usn.ubuntu.com /3558-1/ · vendor-advisory, x_refsource_UBUNTU, x_transferred
  • bugs.launchpad.net /ubuntu/+source/systemd/+bug/1725351 · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.