CVE-2016-5009

The handle_command function in mon/Monitor.cc in Ceph allows remote authenticated users to cause a denial of service (segmentation fault and ceph monitor crash) via an (1) empty or (2) crafted prefix.

Published: 2016-07-12 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-5009 is rated Moderate Risk (53.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.36%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-5009

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-22 1.74% 1.36% -0.38%
2 2025-09-03 1.36% 1.74% +0.38%
3 2025-03-30 — 1.36% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-5009

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2016-5009

OS Trackers for CVE-2016-5009

vendor priority summary link
debian not yet assigned CVE-2016-5009 not yet assigned priority: Debian including 1 source packages (ceph), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-5009
redhat medium — https://access.redhat.com/security/cve/CVE-2016-5009
suse medium CVE-2016-5009 severity moderate: SUSE including 32 source package names (ceph-10.2.3+git.1475228057.755cf99-7.3, ceph-base-10.2.3+git.1475228057.755cf99-7.3, …), 56 product×package rows across 6 product lines (SUSE Enterprise Storage 3, SUSE Linux Enterprise Desktop 12 SP2, … (6 product lines)): Fixed 56. https://www.suse.com/security/cve/CVE-2016-5009/
ubuntu low CVE-2016-5009 low priority: Ubuntu including 1 source packages (ceph), 15 status rows across 15 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 10, ignored 3, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2016-5009

Affected software / configurations for CVE-2016-5009

Vendor Product Version Raw CPE
redhat ceph_storage_mon 1.3 cpe:2.3:a:redhat:ceph_storage_mon:1.3:*:*:*:*:*:*:*
redhat ceph_storage_osd 1.3 cpe:2.3:a:redhat:ceph_storage_osd:1.3:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_for_scientific_computing 7.0 cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
redhat ceph <= 0.94.6 cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*

References for CVE-2016-5009

cvelogic Threat Intelligence