Description: Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.
CVE-2021-21409
Published Date: 2021-03-30T15:15Z
Last Modified: 2023-11-07T03:30Z
CVSS Score: 5.9 (MEDIUM)
EPSS Score: 1.80%
Risk Score: 4.14 (MEDIUM)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
5.9 |
EPSS:
1.8%
Mitre ATT&CK Technical v15.1
T1153 – Source
T1583.004 – Server
T1584.004 – Server
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21295
https://github.com/netty/netty/security/advisories/GHSA-f256-j965-7f32
https://github.com/netty/netty/security/advisories/GHSA-wm47-8v5p-wjpj
https://github.com/netty/netty/commit/b0fa4d5aab4215f3c22ce6123dd8dd5f38dc0432
https://www.debian.org/security/2021/dsa-4885
https://security.netapp.com/advisory/ntap-20210604-0003/
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://www.oracle.com/security-alerts/cpuapr2022.html
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Vendor - Produce - Version
netty - netty, debian_linux - debian, oncommand_workflow_automation - netapp, oncommand_api_services - netapp, coherence - oracle, coherence - oracle, banking_trade_finance_process_management - oracle, banking_credit_facilities_process_management - oracle, banking_corporate_lending_process_management - oracle, primavera_gateway - oracle, primavera_gateway - oracle, primavera_gateway - oracle, banking_trade_finance_process_management - oracle, banking_credit_facilities_process_management - oracle, banking_credit_facilities_process_management - oracle, banking_corporate_lending_process_management - oracle, banking_corporate_lending_process_management - oracle, banking_trade_finance_process_management - oracle, communications_messaging_server - oracle, communications_brm_-_elastic_charging_engine - oracle, communications_design_studio - oracle, communications_cloud_native_core_console - oracle, nosql_database - oracle, communications_cloud_native_core_policy - oracle, helidon - oracle, helidon - oracle, jd_edwards_enterpriseone_tools - oracle, quarkus - quarkus
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