CVE-2019-20445
criticalHttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding hea…
Vendor / product: Netty — netty
HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.
CVSS
9.1
9.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2020-01-29 21:15
Modified: 2026-10-08 22:16
NVD status: Modified
Last synced 2 days ago
Verified against the source API 2026-10-27 07:06 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
netty / netty <4.1.44
debian / debian_linux 8.0, 9.0, 10.0
fedoraproject / fedora 33
canonical / ubuntu_linux 18.04
redhat / jboss_amq_clients 2
redhat / jboss_enterprise_application_platform 7.2, 7.3
apache / spark 2.4.7, 2.4.8
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.Final
Patch / mitigation: https://github.com/netty/netty/issues/9861
Patch / mitigation: https://github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.Final
Patch / mitigation: https://github.com/netty/netty/issues/9861
References
- https://access.redhat.com/errata/RHSA-2020:0497 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0567 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0601 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0605 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0606 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0804 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0805 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0806 cve@mitre.org
- https://access.redhat.com/errata/RHSA-2020:0811 cve@mitre.org
- https://github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.Final cve@mitre.org
- https://github.com/netty/netty/issues/9861 cve@mitre.org
- https://lists.apache.org/thread.html/r030beff88aeb6d7a2d6cd21342bd18686153ce6e26a4171d0e03... cve@mitre.org
- https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e8... cve@mitre.org
- https://lists.apache.org/thread.html/r1fcccf8bdb3531c28bc9aa605a6a1bea7e68cef6fc12e01faafb... cve@mitre.org
- https://lists.apache.org/thread.html/r205937c85817a911b0c72655c2377e7a2c9322d6ef6ce1b118d3... cve@mitre.org
- https://lists.apache.org/thread.html/r2f2989b7815d809ff3fda8ce330f553e5f133505afd04ffbc135... cve@mitre.org
- https://lists.apache.org/thread.html/r310d2ce22304d5298ff87f10134f918c87919b452734f9841d95... cve@mitre.org
- https://lists.apache.org/thread.html/r36fcf538b28f2029e8b4f6b9a772f3b107913a78f09b095c5b15... cve@mitre.org
- https://lists.apache.org/thread.html/r46f93de62b1e199f3f9babb18128681677c53493546f532ed88c... cve@mitre.org
- https://lists.apache.org/thread.html/r4d3f1d3e333d9c2b2f6e6ae8ed8750d4de03410ac294bcd12c7e... cve@mitre.org
- https://lists.apache.org/thread.html/r4ff40646e9ccce13560458419accdfc227b8b6ca4ead3a8a91de... cve@mitre.org
- https://lists.apache.org/thread.html/r640eb9b3213058a963e18291f903fc1584e577f60035f941e32f... cve@mitre.org
- https://lists.apache.org/thread.html/r6945f3c346b7af89bbd3526a7c9b705b1e3569070ebcd0964bce... cve@mitre.org
- https://lists.apache.org/thread.html/r70b1ff22ee80e8101805b9a473116dd33265709007d2deb6f8c8... cve@mitre.org
- https://lists.apache.org/thread.html/r7790b9d99696d9eddce8a8c96f13bb68460984294ea6fea38001... cve@mitre.org
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 07:06 UTC · record ↗