CVE-2021-43797
It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling.
Does this matter?
Lower severity and a low EPSS score (2.68%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- EPSS
- 2.68% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-444
- Affected
- netty/netty · quarkus/quarkus · netapp/oncommand workflow automation · netapp/snapcenter · oracle/banking deposits and lines of credit servicing · oracle/banking party management · oracle/banking platform · oracle/coherence · oracle/communications cloud native core binding support function · oracle/communications cloud native core network slice selection function · oracle/communications cloud native core policy · oracle/communications cloud native core security edge protection proxy · oracle/communications cloud native core unified data repository · oracle/communications design studio · oracle/communications instant messaging server · oracle/helidon · oracle/peoplesoft enterprise peopletools · debian/debian linux
- Source
- security-advisories@github.com
References
- https://github.com/netty/netty/commit/07aa6b5938a8b6ed7a6586e066400e2643897323Patch, Third Party Advisory
- https://github.com/netty/netty/security/advisories/GHSA-wx5j-54mm-rqqqThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/01/msg00008.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220107-0003/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5316Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
- https://github.com/netty/netty/commit/07aa6b5938a8b6ed7a6586e066400e2643897323Patch, Third Party Advisory
- https://github.com/netty/netty/security/advisories/GHSA-wx5j-54mm-rqqqThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/01/msg00008.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220107-0003/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5316Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.