Improper Input Validation Affecting systemd package, versions <231-9
Threat Intelligence
EPSS
0.05% (21st
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN12-SYSTEMD-1560712
- published 13 Oct 2016
- disclosed 13 Oct 2016
Introduced: 13 Oct 2016
CVE-2016-7796 Open this link in a new tabHow to fix?
Upgrade Debian:12 systemd to version 231-9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream systemd package and not the systemd package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2016-7796
- https://github.com/systemd/systemd/issues/4234#issuecomment-250441246
- 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://www.openwall.com/lists/oss-security/2016/09/30/1
- https://bugzilla.redhat.com/show_bug.cgi?id=1381911
- http://rhn.redhat.com/errata/RHSA-2017-0003.html
- https://rhn.redhat.com/errata/RHBA-2015-2092.html
- http://www.securityfocus.com/bid/93250
- http://www.securitytracker.com/id/1037320
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7796
CVSS Scores
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