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CVE-2019-19337· NVD / CVE Program· CNA redhat

A flaw was found in Red Hat Ceph Storage version 3 in the way the Ceph RADOS Gateway daemon handles S3 requests.

A flaw was found in Red Hat Ceph Storage version 3 in the way the Ceph RADOS Gateway daemon handles S3 requests. An authenticated attacker can abuse this flaw by causing a remote denial of service by sending a specially crafted HTTP Content-Length header to the Ceph RADOS Gateway server.

MediumCVSS 6.5 · v3.1—No exploit Fix available
Published
Dec 23, 2019
Updated
Jun 16, 2026
EPSS
1.3% · 70th percentile
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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

CNA vs NVD score

NVD
6.5
CNA · redhat
6.5
agree

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
redhatceph storage

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • redhat ceph storage3.3

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

  • Red Hat Ceph Storage

    • version 3 (upstream versions of Ceph are not affected)affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Red Hat:ceph_storage:3::el7cephbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-ansiblebefore 0:3.2.38-1.el7cp0:3.2.38-1.el7cp
Red Hat:ceph_storage:3::el7ceph-basebefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-commonbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-debuginfobefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-fusebefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-mdsbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-mgrbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-monbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-osdbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-radosgwbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-selinuxbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7ceph-testbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7cephmetricsbefore 0:2.0.9-1.el7cp0:2.0.9-1.el7cp
Red Hat:ceph_storage:3::el7cephmetrics-ansiblebefore 0:2.0.9-1.el7cp0:2.0.9-1.el7cp
Red Hat:ceph_storage:3::el7libcephfs-develbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7libcephfs2before 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7librados-develbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7librados2before 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7libradosstriper1before 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7librbd-develbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7librbd1before 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7librgw-develbefore 2:12.2.12-84.el7cp2:12.2.12-84.el7cp
Red Hat:ceph_storage:3::el7librgw2before 2:12.2.12-84.el7cp2:12.2.12-84.el7cp

+5

Other highest-scoring records for the same primary product.

  • CVE-2016-9579A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a buc
    31Monitor
  • CVE-2018-1128It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack.
    30Monitor
  • CVE-2020-1759A vulnerability was found in Red Hat Ceph Storage 4 and Red Hat Openshift Container Storage 4.2 where, A nonce reuse vulnerability was disco
    27Monitor
  • CVE-2022-3854A flaw was found in Ceph, relating to the URL processing on RGW backends.
    26Monitor
  • CVE-2021-3979A key length flaw was found in Red Hat Ceph Storage.
    26Monitor
  • CVE-2020-10753A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway).
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:ceph2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-base2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-common2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-debuginfo2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-mgr2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-mon2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-selinux2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:ceph-test2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:libcephfs-devel2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:libcephfs22:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:librados-devel2:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)
red hat:librados22:12.2.12-84.el7cp · Red Hat:ceph_storage:3::el7Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Noroxi analysis

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Change log

  1. Fix✗ → ✓

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References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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