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Fencer Vulns
medium 6.5

CVE-2019-19337 json

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

published 2019-12-23 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-8958

cvss
6.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 71%
public exploits
0
none known

Summary

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.

Patch / fix

  • ceph ceph storage 3 2:12.2.12-84.el7cp
  • librbd1 ceph storage 3 2:12.2.12-84.el7cp
  • librgw2 ceph storage 3 2:12.2.12-84.el7cp
  • ceph-mds ceph storage 3 2:12.2.12-84.el7cp
  • ceph-mgr ceph storage 3 2:12.2.12-84.el7cp
  • ceph-mon ceph storage 3 2:12.2.12-84.el7cp
  • ceph-osd ceph storage 3 2:12.2.12-84.el7cp
  • ceph-base ceph storage 3 2:12.2.12-84.el7cp

red hat advisories RHSA-2019:4353

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-19337 updated cvss 6.5

ceph: denial of service in RGW daemon

  • Red Hat OpenStack Platform 13 (Queens) librbd1, librgw2, ceph-fuse, librados2, libcephfs2, python-rbd, +6 more
    affected: workaround, no fix planned “Will not fix”
  • Red Hat Ceph Storage 3 for Ubuntu
    fixed: vendor fix RHSA-2019:4357
  • Red Hat Ceph Storage 3.3 MON ceph 12.2.12-84.el7cp, librbd1 12.2.12-84.el7cp, librgw2 12.2.12-84.el7cp, ceph-mgr 12.2.12-84.el7cp, ceph-mon 12.2.12-84.el7cp, ceph-base 12.2.12-84.el7cp, +10 more Red Hat Ceph Storage 3.3 OSD ceph 12.2.12-84.el7cp, librbd1 12.2.12-84.el7cp, librgw2 12.2.12-84.el7cp, ceph-osd 12.2.12-84.el7cp, ceph-base 12.2.12-84.el7cp, ceph-test 12.2.12-84.el7cp, +9 more Red Hat Ceph Storage 3.3 Tools ceph 12.2.12-84.el7cp, librbd1 12.2.12-84.el7cp, librgw2 12.2.12-84.el7cp, ceph-mds 12.2.12-84.el7cp, cephmetrics 2.0.9-1.el7cp, ceph-base 12.2.12-84.el7cp, +14 more
    fixed: vendor fix RHSA-2019:4353
  • Red Hat Ceph Storage 2 ceph, librbd1, librgw2, ceph-mds, ceph-mon, ceph-osd, +12 more Red Hat Ceph Storage 4 ceph, librbd1, librgw2, rbd-nbd, ceph-mds, ceph-mgr, +27 more Red Hat Enterprise Linux 7 librbd1, librados2, python-rbd, ceph-common, python-rados Red Hat Enterprise Linux 8 librbd1, librados2, libcephfs2, libradosstriper1 Red Hat OpenStack Platform 15 (Stein) librbd1, librgw2, librados2, libcephfs2, ceph-common, python3-rbd, +5 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.32% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • Red Hat Ceph Storage

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.