CVE-2021-43797Medium· 6.5▾ SunlitNetty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the b…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 35.8 · likelihood 0.6 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
2.9%
Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
netty < 4.1.71quarkus < 2.5.3oncommand_workflow_automationsnapcenterbanking_deposits_and_lines_of_credit_servicing = 2.7banking_party_management = 2.7.0banking_platform = 2.6.2coherence = 12.2.1.4.0coherence = 14.1.1.0.0communications_cloud_native_core_binding_support_function = 1.11.0communications_cloud_native_core_network_slice_selection_function = 1.8.0communications_cloud_native_core_policy = 1.15.0communications_cloud_native_core_security_edge_protection_proxy = 1.7.0communications_cloud_native_core_unified_data_repository = 1.15.0communications_design_studio = 7.4.2communications_instant_messaging_server = 8.1helidon = 1.4.10helidon = 2.4.0peoplesoft_enterprise_peopletools = 8.58peoplesoft_enterprise_peopletools = 8.59debian_linux = 10.0debian_linux = 11.0Upgrade past the affected range:
netty 4.1.71quarkus 2.5.3Connected by shared product, vendor, weakness, or advisory.
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