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TI-2020-09314 Aliases CVE-2020-11612GHSA-mm9x-g8pc-w292

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while…

Priority MEDIUM 45CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 18 fixed, 9 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-770.

Summary

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

Why it matters now

EPSS 0.09188 95th percentileScored 2026-11-07
Fix Partial io.netty:netty-handler (Maven): 4.1.46Red Hat: 19 advisoriesRed Hat: 18 fixed, 9 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—io.netty:netty-handler (Maven)4.1.0 to before 4.1.464.1.46Patch availableGHSA-mm9x-g8pc-w292
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • io.netty:netty-handler (Maven) Vendor— Affected 4.1.0 to before 4.1.46 Fixed in 4.1.46 Patch available GHSA-mm9x-g8pc-w292

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*4.1 to before 4.1.46Vulnerablenetty
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:a:netapp:oncommand_api_services:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.3:*:*:*:*:*:*:*12.0.0.3VulnerableOracle
cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.5.2:*:*:*:*:*:*:*1.5.2VulnerableOracle
cpe:2.3:a:oracle:communications_design_studio:7.4.2:*:*:*:*:*:*:*7.4.2VulnerableOracle
  • cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:* Versions 4.1 to before 4.1.46 Vulnerable ·netty
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:a:netapp:oncommand_api_services:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:oracle:communications_brm_-_elastic_charging_engine:12.0.0.3:*:*:*:*:*:*:* Versions 12.0.0.3 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.5.2:*:*:*:*:*:*:* Versions 1.5.2 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:communications_design_studio:7.4.2:*:*:*:*:*:*:* Versions 7.4.2 Vulnerable ·Oracle
Show 5 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:oracle:nosql_database:*:*:*:*:*:*:*:*before 20.3VulnerableOracle
cpe:2.3:a:oracle:siebel_core_-_server_framework:*:*:*:*:*:*:*:*before 21.5VulnerableOracle
cpe:2.3:a:oracle:webcenter_portal:12.2.1.3.0:*:*:*:*:*:*:*12.2.1.3.0VulnerableOracle
cpe:2.3:a:oracle:webcenter_portal:12.2.1.4.0:*:*:*:*:*:*:*12.2.1.4.0VulnerableOracle
cpe:2.3:o:oracle:communications_messaging_server:8.1:*:*:*:*:*:*:*8.1VulnerableOracle
  • cpe:2.3:a:oracle:nosql_database:*:*:*:*:*:*:*:* Versions before 20.3 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:siebel_core_-_server_framework:*:*:*:*:*:*:*:* Versions before 21.5 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:webcenter_portal:12.2.1.3.0:*:*:*:*:*:*:* Versions 12.2.1.3.0 Vulnerable ·Oracle
  • cpe:2.3:a:oracle:webcenter_portal:12.2.1.4.0:*:*:*:*:*:*:* Versions 12.2.1.4.0 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:communications_messaging_server:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Oracle

Remediation

  • Fix · GHSA-mm9x-g8pc-w292 io.netty:netty-handler (Maven) Fixed in 4.1.46 Advisory →

Red Hat 19 advisories

  • RHSA-2021:1313 Released 2021-04-21 · Red Hat rating Moderate
    Satellite 6.9 Release
    • Red Hat Satellite 6.9 ansible-collection-redhat-satellite-2.0.1-1.el7sat, ansible-runner-1.4.6-1.el7ar, ansiblerole-foreman_scap_client-0.1.0-1.el7sat +47
    • Red Hat Satellite Capsule 6.9 ansible-collection-redhat-satellite-2.0.1-1.el7sat, ansible-runner-1.4.6-1.el7ar, ansiblerole-foreman_scap_client-0.1.0-1.el7sat +47
  • RHSA-2020:5568 Released 2020-12-16 · Red Hat rating Important
    Red Hat Fuse 7.8.0 release and security update
    • Red Hat Fuse 7.8.0
  • RHSA-2020:4252 Released 2020-10-14 · Red Hat rating Important
    Red Hat build of Quarkus 1.7.5 release and security update
    • Red Hat build of Quarkus 1.7.5
Show 16 more Red Hat advisories
  • RHSA-2020:3779 Released 2020-09-17 · Red Hat rating Important
    Red Hat Data Grid 7.3.7 security update
    • Red Hat Data Grid 7.3.7
  • RHSA-2020:3626 Released 2020-09-03 · Red Hat rating Moderate
    Red Hat Data Grid 8.1.0 Security Update
    • Red Hat Data Grid
  • RHSA-2020:3585 Released 2020-08-31 · Red Hat rating Important
    EAP Continuous Delivery Technical Preview Release 20 security update
    • EAP-CD 20 Tech Preview
  • RHSA-2020:3501 Released 2020-08-18 · Red Hat rating Important
    Red Hat Single Sign-On 7.4.2 security update
    • Red Hat Single Sign-On 7.4.2
  • RHSA-2020:3463 Released 2020-08-17 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.3.2 security update
    • Red Hat JBoss EAP 7.3 for BaseOS-8 eap7-dom4j-2.1.3-1.redhat_00001.1.el8eap, eap7-elytron-web-1.6.2-1.Final_redhat_00001.1.el8eap, eap7-glassfish-jsf-2.3.9-11.SP11_redhat_00001.1.el8eap +47
  • RHSA-2020:3462 Released 2020-08-17 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.3.2 security update
    • Red Hat JBoss EAP 7.3 for RHEL 7 Server eap7-dom4j-2.1.3-1.redhat_00001.1.el7eap, eap7-elytron-web-1.6.2-1.Final_redhat_00001.1.el7eap, eap7-glassfish-jsf-2.3.9-11.SP11_redhat_00001.1.el7eap +47
  • RHSA-2020:3461 Released 2020-08-17 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.3.2 security update
    • Red Hat JBoss EAP 7.3 for RHEL 6 Server eap7-dom4j-2.1.3-1.redhat_00001.1.el6eap, eap7-elytron-web-1.6.2-1.Final_redhat_00001.1.el6eap, eap7-glassfish-jsf-2.3.9-11.SP11_redhat_00001.1.el6eap +47
  • RHSA-2020:3464 Released 2020-08-17 · Red Hat rating Important
    Red Hat JBoss Enterprise Application Platform 7.3.2 security update
    • Red Hat JBoss Enterprise Application Platform 7
  • RHSA-2020:3197 Released 2020-07-29 · Red Hat rating Important
    Red Hat Process Automation Manager 7.8.0 Security Update
    • Red Hat Process Automation 7
  • RHSA-2020:3196 Released 2020-07-29 · Red Hat rating Important
    Red Hat Decision Manager 7.8.0 Security Update
    • Red Hat Decision Manager 7
  • RHSA-2020:3133 Released 2020-07-23 · Red Hat rating Important
    Red Hat AMQ Broker 7.4.4 release and security update
    • Red Hat AMQ
  • RHSA-2020:2751 Released 2020-06-25 · Red Hat rating Important
    Red Hat AMQ Broker 7.7 release and security update
    • Red Hat AMQ
  • RHSA-2020:2618 Released 2020-06-19 · Red Hat rating Moderate
    Red Hat AMQ Streams 1.5.0 release and security update
    • Red Hat AMQ Streams 1.5.0
  • RHSA-2020:2605 Released 2020-06-17 · Red Hat rating Low
    AMQ Clients 2.7.0 Release
    • Red Hat AMQ Clients 2 nodejs-rhea-1.0.21-1.el8, python-qpid-proton-0.31.0-3.el6_10, python-qpid-proton-0.31.0-3.el7 +42
  • RHSA-2020:1422 Released 2020-04-30 · Red Hat rating Moderate
    Red Hat build of Eclipse Vert.x 3.9.0 security update
    • Text-Only RHOAR
  • RHSA-2020:1538 Released 2020-04-22 · Red Hat rating Low
    AMQ Online security update
    • Red Hat AMQ Online 1.4.1 GA

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix yet
Red Hat JBoss A-MQ 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Application Platform 5AffectedNo fix planned: Out of support scope
Red Hat JBoss Enterprise Application Platform 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Fuse 6AffectedNo fix planned: Out of support scope
Red Hat JBoss Operations Network 3AffectedNo fix planned: Out of support scope
Red Hat OpenShift Application RuntimesAffectedNo fix yet
Red Hat OpenShift Container Platform 3.11AffectedNo fix planned: Will not fix
Red Hat OpenShift Container Platform 4AffectedNo fix planned: Will not fix
EAP-CD 20 Tech PreviewFixed RHSA-2020:3585
Red Hat AMQFixed RHSA-2020:2751
Red Hat AMQ Clients 2Fixed RHSA-2020:2605
Red Hat AMQ Online 1.4.1 GAFixed RHSA-2020:1538
Red Hat AMQ Streams 1.5.0Fixed RHSA-2020:2618
Red Hat Data GridFixed RHSA-2020:3626
Red Hat Data Grid 7.3.7Fixed RHSA-2020:3779
Red Hat Decision Manager 7Fixed RHSA-2020:3196
Red Hat Fuse 7.8.0Fixed RHSA-2020:5568
Red Hat JBoss EAP 7.3 for BaseOS-8Fixed RHSA-2020:3463
Red Hat JBoss EAP 7.3 for RHEL 6 ServerFixed RHSA-2020:3461
Red Hat JBoss EAP 7.3 for RHEL 7 ServerFixed RHSA-2020:3462
Red Hat JBoss Enterprise Application Platform 7Fixed RHSA-2020:3464
Red Hat Process Automation 7Fixed RHSA-2020:3197
Red Hat Satellite 6.9Fixed RHSA-2021:1313
Red Hat Single Sign-On 7.4.2Fixed RHSA-2020:3501
Red Hat build of Quarkus 1.7.5Fixed RHSA-2020:4252
Text-Only RHOARFixed RHSA-2020:1422
Not affected: 3 products
  • Red Hat JBoss EAP 7.3 for RHEL 6 Server
  • Red Hat Satellite 6.9
  • Red Hat Satellite Capsule 6.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-11612
  2. 2026-10-03 Alias added: GHSA-mm9x-g8pc-w292

References

Other 70

Sources