Read the docs
TI-2018-12056 Aliases CVE-2018-16846GHSA-77fq-6x6c-cq7q

Resource allocation without limits in [UNKNOWN] ceph

Priority LOW 33CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-770.

Summary

It was found in Ceph versions before 13.2.4 that authenticated ceph RGW users can cause a denial of service against OMAPs holding bucket indices.

Why it matters now

EPSS 0.02136 82nd percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
[UNKNOWN]ceph13.2.4—No fix listedCNA
  • ceph Vendor[UNKNOWN] Affected 13.2.4 Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*before 13.2.4VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*15.0VulnerableopenSUSE
cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*2.0VulnerableRed Hat
cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:*3.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*19.04VulnerableCanonical
  • cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:* Versions before 13.2.4 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* Versions 15.0 Vulnerable ·openSUSE
  • cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:ceph_storage:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical

Remediation

Red Hat 2 advisories

  • RHSA-2019:2541 Released 2019-08-21 · Red Hat rating Moderate
    Red Hat Ceph Storage 3.3 security, bug fix, and enhancement update
    • Red Hat Ceph Storage 3 for Ubuntu
  • RHSA-2019:2538 Released 2019-08-21 · Red Hat rating Moderate
    Red Hat Ceph Storage 3.3 security, bug fix, and enhancement update
    • Red Hat Ceph Storage 3.3 MON ceph-2:12.2.12-45.el7cp, ceph-base-2:12.2.12-45.el7cp, ceph-common-2:12.2.12-45.el7cp +17
    • Red Hat Ceph Storage 3.3 OSD ceph-2:12.2.12-45.el7cp, ceph-base-2:12.2.12-45.el7cp, ceph-common-2:12.2.12-45.el7cp +16
    • Red Hat Ceph Storage 3.3 Tools ceph-2:12.2.12-45.el7cp, ceph-ansible-3.2.24-1.el7cp, ceph-base-2:12.2.12-45.el7cp +28

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ceph Storage 2AffectedNo fix planned: Will not fix
Red Hat Ceph Storage 3 for UbuntuFixed RHSA-2019:2541
Red Hat Ceph Storage 3.3 MONFixed RHSA-2019:2538
Red Hat Ceph Storage 3.3 OSDFixed RHSA-2019:2538
Red Hat Ceph Storage 3.3 ToolsFixed RHSA-2019:2538
Not affected: 3 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Virtualization 4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-16846
  2. 2026-10-03 Alias added: GHSA-77fq-6x6c-cq7q

References

Patch 1

Advisory 7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences