CVE-2016-7796

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2016-7796
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2016-10-13T14:59:14
  • Last Modified Date
  • 2017-07-28T01:29:06
Weakness Enumerations
CWE URL
CWE-20 http://cwe.mitre.org/data/definitions/20.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:systemd_project:systemd:209:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:systemd_project:systemd:213:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:systemd_project:systemd:214:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:systemd_project:systemd:229:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:ltss:*:*:* 1 OR
cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:o:novell:suse_linux_enterprise_server_for_sap:12.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 Exploit Patch Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00016.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/09/30/1 Third Party Advisory
https://rhn.redhat.com/errata/RHBA-2015-2092.html Third Party Advisory
http://www.securityfocus.com/bid/93250 Third Party Advisory
https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet Exploit Technical Description Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1381911 Issue Tracking Third Party Advisory VDB Entry
http://rhn.redhat.com/errata/RHSA-2017-0003.html
http://www.securitytracker.com/id/1037320
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2016-7796
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7796
History
Created Old Value New Value Data Type Notes
2022-05-10 09:17:39 Added to TrackCVE
2022-12-02 11:39:00 2016-10-13T14:59Z 2016-10-13T14:59:14 CVE Published Date updated
2022-12-02 11:39:00 2017-07-28T01:29:06 CVE Modified Date updated
2022-12-02 11:39:00 Modified Vulnerability Status updated