What’s Vulnerable › Vulnerabilities

CVE-2018-16846

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-01-15 · updated 2026-06-17
• Weakness: CWE-770

Description

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.

Affected products

• Canonical Ubuntu Linux: 16.04, 18.10, 19.04
• Debian Linux: 8.0, 9.0
• openSUSE Leap: 15.0
• ceph: before 13.2.4 — fixed in 13.2.4
• Red Hat Ceph Storage: 2.0, 3.0
• RedHat Enterprise Linux Server: 7.0

How to fix

Upgrade to a fixed version: ceph 13.2.4. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html
• https://access.redhat.com/errata/RHSA-2019:2538
• https://access.redhat.com/errata/RHSA-2019:2541
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16846
• https://ceph.com/releases/13-2-4-mimic-released/
• https://lists.debian.org/debian-lts-announce/2019/03/msg00002.html
• https://lists.debian.org/debian-lts-announce/2021/08/msg00013.html
• https://usn.ubuntu.com/4035-1/
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html
• https://access.redhat.com/errata/RHSA-2019:2538
• https://access.redhat.com/errata/RHSA-2019:2541
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16846

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