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CVE-2019-3821

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL...

7.5 High

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

2.95%Up 1.6 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 7.5

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Record
CVE-2019-3821
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-772
Updated
2026-11-02
EUVDEUVD-2019-13444 7.5

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Record
EUVD-2019-13444
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-24mx-5rm6-qcm5 7.5

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL...

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Record
GHSA-24mx-5rm6-qcm5
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-772
Updated
2026-11-02
NVD 7.5

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Record
CVE-2019-3821
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness
CWE-772
Updated
2026-11-02
OSVUBUNTU-CVE-2019-3821 7.5

A flaw was found in the way civetweb frontend was handling requests for ceph RGW server with SSL enabled. An unauthenticated attacker could create multiple connections to ceph RADOS gateway to exhaust file descriptors for ceph-radosgw service resulting in a remote denial of service.

Record
UBUNTU-CVE-2019-3821
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.0
7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:10676-1 No score

ceph-16.2.6.45+g8fda9838398-1.1 on GA media

These are all security issues fixed in the ceph-16.2.6.45+g8fda9838398-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:10676-1
Updated
2026-11-02
OSVSUSE-SU-2019:2049-1 No score

Security update for ceph

This update for ceph fixes the following issues:

Security issues fixed:

  • CVE-2019-3821: civetweb: fix file descriptor leak (bsc#1125080)
  • CVE-2018-16889: rgw: sanitize customer encryption keys from log output in v4 auth (bsc#1121567)

Non-security issues fixed:

  • install grafana dashboards world readable (bsc#1136110)
  • upgrade results in cluster outage (bsc#1132396)
  • ceph status reports 'HEALTH_WARN 3 monitors have not enabled msgr2' (bsc#1124957)
  • Dashboard: Opening tcmu-runner perf counters results in a 404 (bsc#1135388)
  • RadosGW stopped expiring objects (bsc#1133139)
  • Ceph does not recover when rebuilding every OSD (bsc#1133461)
Record
SUSE-SU-2019:2049-1
Updated
2026-11-02
OSVUSN-4035-1 No score

ceph vulnerabilities

It was discovered that Ceph incorrectly handled read only permissions. An authenticated attacker could use this issue to obtain dm-crypt encryption keys. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-14662)

It was discovered that Ceph incorrectly handled certain OMAPs holding bucket indices. An authenticated attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-16846)

It was discovered that Ceph incorrectly sanitized certain debug logs. A local attacker could possibly use this issue to obtain encryption key information. This issue was only addressed in Ubuntu 18.10 and Ubuntu 19.04. (CVE-2018-16889)

It was discovered that Ceph incorrectly handled certain civetweb requests. A remote attacker could possibly use this issue to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.10 and Ubuntu 19.04. (CVE-2019-3821)

Record
USN-4035-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ceph
SUSE:Linux Enterprise Module for Basesystem 15 SP1
From an advisory covering 2 CVEs
before 14.2.1.468+g994fd9e0cc-3.3.2
14.2.1.468+g994fd9e0cc-3.3.2
ceph
SUSE:Enterprise Storage 6
From an advisory covering 2 CVEs
before 14.2.1.468+g994fd9e0cc-3.3.2
14.2.1.468+g994fd9e0cc-3.3.2
ceph
Ubuntu:16.04:LTS
From an advisory covering 4 CVEs
before 10.2.11-0ubuntu0.16.04.2, plus listed versions
0.94.3-0ubuntu20.94.5-0ubuntu19.2.0-0ubuntu39.2.0-0ubuntu49.2.0-0ubuntu5
Show 17 moreShow less
9.2.0-0ubuntu610.0.2-0ubuntu110.0.3-0ubuntu110.0.5-0ubuntu110.1.0-0ubuntu110.1.1-0ubuntu110.1.2-0ubuntu110.2.0-0ubuntu0.16.04.110.2.0-0ubuntu0.16.04.210.2.2-0ubuntu0.16.04.210.2.3-0ubuntu0.16.04.210.2.5-0ubuntu0.16.04.110.2.6-0ubuntu0.16.04.110.2.7-0ubuntu0.16.04.110.2.9-0ubuntu0.16.04.110.2.10-0ubuntu0.16.04.110.2.11-0ubuntu0.16.04.1
10.2.11-0ubuntu0.16.04.2

History

History
RecordedChangedSources
affected, facts
affected
aliases, productsEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-3821 is a high vulnerability (CVSS 7.5) in [unknown] Ceph, published March 27, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.95%, the 87th percentile. No source names a fixed version.

References

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