Vulnerability Monitor

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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.

Published

2016-10-13T14:59:14.567

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

6.9

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	systemd_project	systemd	209	Yes
Application	systemd_project	systemd	213	Yes
Application	systemd_project	systemd	214	Yes
Application	systemd_project	systemd	229	Yes
Application	novell	suse_linux_enterprise_software_development_kit	12.0	Yes
Operating System	novell	suse_linux_enterprise_desktop	12	Yes
Operating System	novell	suse_linux_enterprise_server	12.0	Yes
Operating System	novell	suse_linux_enterprise_server	12.0	Yes
Operating System	novell	suse_linux_enterprise_server_for_sap	12.0	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_hpc_node	7.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html Third Party Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2017-0003.html ([email protected])
http://www.openwall.com/lists/oss-security/2016/09/30/1 Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/93250 Third Party Advisory ([email protected])
http://www.securitytracker.com/id/1037320 ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1381911 Issue Tracking, Third Party Advisory, VDB Entry ([email protected])
https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 Exploit, Patch, Vendor Advisory ([email protected])
https://rhn.redhat.com/errata/RHBA-2015-2092.html Third Party Advisory ([email protected])
https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet Exploit, Technical Description, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2017-0003.html (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2016/09/30/1 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/93250 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1037320 (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1381911 Issue Tracking, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://rhn.redhat.com/errata/RHBA-2015-2092.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet Exploit, Technical Description, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)