CVE-2016-7795
CVE-2016-7795 is a medium-severity vulnerability in Systemd Project Systemd with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.9
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-20
- Affected product: Systemd Project Systemd
- Published:
- Last modified:
Description
The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message received over a notify socket.
Frequently asked questions
- What is CVE-2016-7795?
- The manager_invoke_notify_message function in systemd 231 and earlier allows local users to cause a denial of service (assertion failure and PID 1 hang) via a zero-length message received over a notify socket.
- How severe is CVE-2016-7795?
- CVE-2016-7795 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2016-7795 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-7795?
- CVE-2016-7795 primarily affects Systemd Project Systemd. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-7795?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2016-7795 published?
- CVE-2016-7795 was published on 2016-10-13 and last updated on 2026-06-17.
References
- http://rhn.redhat.com/errata/RHSA-2016-2610.html
- http://rhn.redhat.com/errata/RHSA-2016-2694.html
- http://www.openwall.com/lists/oss-security/2016/09/28/9
- http://www.openwall.com/lists/oss-security/2016/09/30/1
- http://www.securityfocus.com/bid/93223
- http://www.securitytracker.com/id/1037320
- http://www.ubuntu.com/usn/USN-3094-1
- https://github.com/systemd/systemd/issues/4234
- https://www.agwa.name/blog/post/how_to_crash_systemd_in_one_tweet
Affected products (2)
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*
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