Vulnerability Report

CVE-2016-7796

Title: Systemd Project Systemd Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2016-7796.

CWE Category CWE-20
Published Date Oct 13, 2016
Modified Date May 06, 2026
Exploit Status Not Found
Score 5.5 CVSS v3.0
Exploit Probability (EPSS)
0.38%

Vulnerability Summary

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 received over a notify socket, which causes an error to be returned and the notification handler to be disabled.

Impacted Vendors

L
linux 1
S
suse 1
S
systemd_project 1
N
novell 1

Reference Links

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html http://rhn.redhat.com/errata/RHSA-2017-0003.html http://www.openwall.com/lists/oss-security/2016/09/30/1 http://www.securityfocus.com/bid/93250 http://www.securitytracker.com/id/1037320 https://bugzilla.redhat.com/show_bug.cgi?id=1381911 https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 https://rhn.redhat.com/errata/RHBA-2015-2092.html https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html http://rhn.redhat.com/errata/RHSA-2017-0003.html http://www.openwall.com/lists/oss-security/2016/09/30/1 http://www.securityfocus.com/bid/93250 http://www.securitytracker.com/id/1037320 https://bugzilla.redhat.com/show_bug.cgi?id=1381911 https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 https://rhn.redhat.com/errata/RHBA-2015-2092.html https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet
CVSS v3.0
Source Entity [email protected]
Severity MEDIUM
5.5
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.9
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:N/I:N/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-7796 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Stack

No specific products linked.