CVE-2019-19337

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.

Published: 2019-12-23 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-19337 is rated Moderate Risk (47.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.41%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-19337

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-09 0.52% 0.41% -0.11%
2 2026-03-29 0.55% 0.52% -0.03%
3 2025-03-30 — 0.55% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-19337

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2019-19337

OS Trackers for CVE-2019-19337

vendor priority summary link
debian unimportant CVE-2019-19337 unimportant priority: Debian including 1 source packages (ceph), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-19337
redhat medium — https://access.redhat.com/security/cve/CVE-2019-19337
suse medium CVE-2019-19337 severity moderate: SUSE including 41 source package names (ceph, ceph-base, …), 245 product×package rows across 25 product lines (SUSE CaaS Platform 3.0, SUSE Container as a Service Platform 2.0, … (25 product lines)): Known Not Affected 245. https://www.suse.com/security/cve/CVE-2019-19337/
ubuntu medium CVE-2019-19337 medium priority: Ubuntu including 1 source packages (ceph), 6 status rows across 6 suites (bionic, disco, eoan, trusty, upstream, xenial): not-affected 6. https://ubuntu.com/security/CVE-2019-19337

Affected software / configurations for CVE-2019-19337

Vendor Product Version Raw CPE
redhat ceph_storage 3.3 cpe:2.3:a:redhat:ceph_storage:3.3:*:*:*:*:*:*:*

References for CVE-2019-19337

URL Tags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19337 Issue Tracking Mitigation Vendor Advisory
cvelogic Threat Intelligence