CVE-2016-7796
Systemd Denial of Service (DoS) Vulnerability
Description
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.
INFO
Published Date :
Oct. 13, 2016, 2:59 p.m.
Last Modified :
Sept. 12, 2023, 2:45 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2016-7796
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2016-7796
.
URL | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html | Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html | Third Party Advisory |
http://rhn.redhat.com/errata/RHSA-2017-0003.html | |
http://www.openwall.com/lists/oss-security/2016/09/30/1 | Third Party Advisory |
http://www.securityfocus.com/bid/93250 | Third Party Advisory |
http://www.securitytracker.com/id/1037320 | |
https://bugzilla.redhat.com/show_bug.cgi?id=1381911 | Issue Tracking Third Party Advisory VDB Entry |
https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 | Exploit Patch Vendor Advisory |
https://rhn.redhat.com/errata/RHBA-2015-2092.html | Third Party Advisory |
https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet | Exploit Technical Description Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2016-7796
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2016-7796
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Sep. 12, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* OR *cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 28, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1037320 [No Types Assigned] -
CVE Modified by [email protected]
Jan. 07, 2017
Action Type Old Value New Value Added Reference http://rhn.redhat.com/errata/RHSA-2017-0003.html [No Types Assigned] -
CVE Translated by [email protected]
Oct. 14, 2016
Action Type Old Value New Value -
Modified Analysis by [email protected]
Oct. 13, 2016
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:systemd_project:systemd:209:*:*:*:*:*:*:* *cpe:2.3:a:systemd_project:systemd:213:*:*:*:*:*:*:* *cpe:2.3:a:systemd_project:systemd:214:*:*:*:*:*:*:* *cpe:2.3:a:systemd_project:systemd:229:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:novell:suse_linux_enterprise_server_for_sap:12.0:*:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_desktop:12:sp1:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:ltss:*:*:* Configuration 3 OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 No Types Assigned https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 Vendor Advisory, Exploit, Patch Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2016/09/30/1 No Types Assigned http://www.openwall.com/lists/oss-security/2016/09/30/1 Third Party Advisory Changed Reference Type https://rhn.redhat.com/errata/RHBA-2015-2092.html No Types Assigned https://rhn.redhat.com/errata/RHBA-2015-2092.html Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/93250 No Types Assigned http://www.securityfocus.com/bid/93250 Third Party Advisory Changed Reference Type https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet No Types Assigned https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet Third Party Advisory, Technical Description, Exploit Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1381911 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1381911 Third Party Advisory, VDB Entry, Issue Tracking Added CWE CWE-20 -
Initial Analysis by [email protected]
Oct. 13, 2016
Action Type Old Value New Value Changed CPE Configuration Configuration 1 OR Configuration 1 OR *cpe:2.3:a:systemd_project:systemd:209:*:*:*:*:*:*:* *cpe:2.3:a:systemd_project:systemd:213:*:*:*:*:*:*:* *cpe:2.3:a:systemd_project:systemd:214:*:*:*:*:*:*:* *cpe:2.3:a:systemd_project:systemd:229:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:o:novell:suse_linux_enterprise_server_for_sap:12.0:*:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_desktop:12:sp1:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* *cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:ltss:*:*:* Added CVSS V2 (AV:L/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 No Types Assigned https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 Exploit, Patch, Vendor Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html Third Party Advisory Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2016/09/30/1 No Types Assigned http://www.openwall.com/lists/oss-security/2016/09/30/1 Third Party Advisory Changed Reference Type https://rhn.redhat.com/errata/RHBA-2015-2092.html No Types Assigned https://rhn.redhat.com/errata/RHBA-2015-2092.html Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/93250 No Types Assigned http://www.securityfocus.com/bid/93250 Third Party Advisory Changed Reference Type https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet No Types Assigned https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet Exploit, Technical Description, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1381911 Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=1381911 Issue Tracking, Third Party Advisory, VDB Entry Added CWE CWE-20
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2016-7796
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2016-7796
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.18078
percentile