CVE-2017-12155: A resource-permission flaw was found in the openstack-tripleo-heat-templates package where ceph.client.opensta

Routine

MEDIUM 6.3MITIGATE

CVE-2017-12155 is a medium-severity flaw (CVSS 6.3) affecting ceph. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A resource-permission flaw was found in the openstack-tripleo-heat-templates package where ceph.client.openstack.keyring is created as world-readable. A local attacker with access to the key could read or modify data on Ceph cluster pools for OpenStack as though the attacker were the OpenStack service, thus potentially reading or modifying data in an OpenStack Block Storage volume.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-306
Published	2017-12-12
Last modified	2026-06-17

Publisher (CNA): Red Hat, Inc. · Vendor: ceph

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-12-12 20:29 UTCPublished CVE record published
2026-06-17 01:02 UTCUpdated Record last modified

ceph ceph MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ceph || rpm -q ceph || ceph --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-12155?

ceph: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-12155 being exploited?

CVE-2017-12155 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-12155 affect?

CVE-2017-12155 affects ceph. Severity is medium (CVSS 6.3). A resource-permission flaw was found in the openstack-tripleo-heat-templates package where ceph.client.openstack.keyring is created as world-readable. A local attacker with access to the key could read or modify data on Ceph cluster pools f

How urgent is CVE-2017-12155?

Priority 27/100. No elevated risk signals yet.

Software pages

OpenStack vulnerabilities · Ceph vulnerabilities

Related CVEs

CVE-2024-47866 HIGH 7.5 UPGRADE Ceph is a distributed object, block, and file storage platform
CVE-2022-3650 HIGH 7.8 DOWNGRADE A privilege escalation flaw was found in Ceph
CVE-2022-0670 CRITICAL 9.1 UPGRADE UPGRADE A flaw was found in Openstack manilla owning a Ceph File system "share", which enables the owner to read/write
CVE-2021-3531 MEDIUM 5.3 UPGRADE DOWNGRADE A flaw was found in the Red Hat Ceph Storage RGW in versions before 14.2.21
CVE-2021-3524 MEDIUM 6.5 UPGRADE DOWNGRADE A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21

References

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