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Fencer Vulns
medium 4.5

CVE-2019-11287 json

RabbitMQ Web Management Plugin DoS via heap overflow

published 2019-11-22 6 y ago modified 2026-06-17 4 mo ago also GHSA-hrfh-7j5f-8ccr , EUVD-2022-4206

cvss
4.5
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
4.4%
EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Pivotal RabbitMQ, versions 3.7.x prior to 3.7.21 and 3.8.x prior to 3.8.1, and RabbitMQ for Pivotal Platform, 1.16.x versions prior to 1.16.7 and 1.17.x versions prior to 1.17.4, contain a web management plugin that is vulnerable to a denial of service attack. The "X-Reason" HTTP Header can be leveraged to insert a malicious Erlang format string that will expand and consume the heap, resulting in the server crashing.

Patch / fix

  • hex RabbitMQ 1.16.7, 1.17.4, 3.7.21, 3.8.1
  • Pivotal RabbitMQ for Pivotal Platform 1.16.7, 1.17.4
  • Pivotal RabbitMQ v3.7.21, v3.8.1
  • rabbitmq-server Debian 14, Debian 13, Debian 12 3.8.3-1

debian advisories DEBIAN-CVE-2019-11287

  • rabbitmq-server Ubuntu 18.04 LTS 3.6.10-1ubuntu0.5
  • rabbitmq-server Ubuntu Pro 16.04 LTS 3.5.7-1ubuntu0.16.04.4+esm1

ubuntu advisories UBUNTU-CVE-2019-11287

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • rabbitmq-server openstack 15 3.7.22-1.el8ost

red hat advisories RHSA-2020:0078

  • grafana OpenStack Cloud Crowbar 9, OpenStack Cloud 9 6.7.4-3.29.1
  • rubygem-puma OpenStack Cloud Crowbar 9 2.16.0-4.18.1
  • ardana-ansible OpenStack Cloud 9 9.0+git.1660748476.c118d23-3.32.1
  • ardana-cobbler OpenStack Cloud 9 9.0+git.1660747489.119efcd-3.19.1
  • ardana-tempest OpenStack Cloud 9 9.0+git.1651855288.a2341ad-3.22.1
  • openstack-nova OpenStack Cloud Crowbar 9, OpenStack Cloud 9 18.3.1~dev92-3.43.1
  • python-Django1 OpenStack Cloud Crowbar 9, OpenStack Cloud 9 1.11.29-3.40.1
  • rabbitmq-server OpenStack Cloud Crowbar 9, OpenStack Cloud 9 3.6.16-4.3.1

suse advisories SUSE-SU-2022:3339-1SUSE-SU-2022:3338-1

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-2019-11287 updated cvss 7.5

rabbitmq-server: "X-Reason" HTTP Header can be leveraged to insert a malicious string leading to DoS

  • Red Hat OpenStack Platform 10 (Newton) rabbitmq-server Red Hat OpenStack Platform 14 (Rocky) rabbitmq-server
    affected: workaround, no fix planned “This flaw can be mitigated by disabling the Web Management plugin: rabbitmq-plugins disable rabbitmq_management.”
  • Red Hat OpenStack Platform 16 (Train) rabbitmq-server
    affected: workaround, no fix available “This flaw can be mitigated by disabling the Web Management plugin: rabbitmq-plugins disable rabbitmq_management.”
  • Red Hat OpenStack Platform 15.0 rabbitmq-server 3.7.22-1.el8ost
    fixed: vendor fix “This flaw can be mitigated by disabling the Web Management plugin: rabbitmq-plugins disable rabbitmq_management.” RHSA-2020:0078
  • Red Hat CloudForms Management Engine 5 rabbitmq-server Red Hat Ansible Tower 3 rabbitmq-server Red Hat OpenStack Platform 13 (Queens) rabbitmq-server
    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

4.40% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-11287-DoS%20via%20Heap%20Overflow-RabbitMQ%20Web%20Management%20Plugin referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 4.5 CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
hex RabbitMQ
>=3.7.0, <3.7.21
>=3.8.0, <3.8.1
<1.16.7
>=1.17.0, <1.17.4
3.7.21
3.8.1
1.16.7
1.17.4

Affected products

  • Pivotal RabbitMQ for Pivotal Platform
  • Pivotal RabbitMQ

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption
  • CWE-134 Use of Externally-Controlled Format String

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.