vulnwire
5.5med

CVE-2016-7796

The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
5.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.9%
percentile 59%
Public exploits
0
none known

The manager_dispatch_notify_fd function in systemd allows local users to cause a denial of service (system hang) via a zero-length message received over a notify socket, which causes an error to be returned and the notification handler to be disabled.

Exploit prediction (EPSS)

0.85% probability of exploitation in the next 30 days, higher than 59% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD2.04.9AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • openwall.com /lists/oss-security/2016/09/30/1 · mailing-list, x_refsource_MLIST, x_transferred
  • agwa.name /blog/post/how_to_crash_systemd_in_one_tweet · x_refsource_MISC, x_transferred
  • github.com /systemd/systemd/issues/4234#issuecomment-250441246 · x_refsource_CONFIRM, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-10/msg00015.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • bugzilla.redhat.com /show_bug.cgi?id=1381911 · x_refsource_CONFIRM, x_transferred
  • rhn.redhat.com /errata/RHSA-2017-0003.html · vendor-advisory, x_refsource_REDHAT, x_transferred
  • lists.opensuse.org /opensuse-security-announce/2016-10/msg00016.html · vendor-advisory, x_refsource_SUSE, x_transferred
  • securitytracker.com /id/1037320 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • securityfocus.com /bid/93250 · vdb-entry, x_refsource_BID, x_transferred
  • rhn.redhat.com /errata/RHBA-2015-2092.html · vendor-advisory, x_refsource_REDHAT, x_transferred

Sources

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