PT-2016-7397 · Systemd+2 · Systemd+2

Andrew Ayer · Published 2014-09-12 · Updated 2023-09-12 · CVE-2016-7796

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions systemd (affected versions not specified)

Description The issue allows local users to cause a denial of service, resulting in a system hang. This occurs when a zero-length message is received over a notify socket, causing an error to be returned and the notification handler to be disabled. The manager dispatch notify fd function in systemd is involved in this issue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2014-2133

ALT-PU-2016-1544

CVE-2016-7796

DLA-659-1

OPENSUSE-SU-2016_2522-1

OPENSUSE-SU-2016_2539-1

RHSA-2017:0003

SUSE-SU-2016:2475-1

SUSE-SU-2016:2476-1

SUSE-SU-2016_2475-1

SUSE-SU-2016_2476-1

SUSE-SU-2017:2699-1

SUSE-SU-2017:2700-1

Affected Products

Alt Linux

Suse

Systemd

References · 44

• 🔥 https://github.com/systemd/systemd/issues/4234#issuecomment-250441246 · Exploit
• 🔥 https://agwa.name/blog/post/how_to_crash_systemd_in_one_tweet · Exploit
• https://security-tracker.debian.org/tracker/CVE-2016-7796 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0003.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7796 · Security Note
• https://ubuntu.com/security/CVE-2016-7796 · Vendor Advisory
• https://rhn.redhat.com/errata/RHBA-2015-2092.html · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2014-2133 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2475-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-7796 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00015.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:2476-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-7796 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2016-1544 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-7796 · Vendor Advisory