Critical severityNVD Advisory· Published Jan 29, 2020· Updated Jul 1, 2025
CVE-2019-20444
CVE-2019-20444
Description
HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
io.netty:netty-codec-httpMaven | < 4.1.44 | 4.1.44 |
org.jboss.netty:nettyMaven | >= 0 | — |
io.netty:nettyMaven | >= 0 | — |
Affected products
7- Netty/Nettydescription
- osv-coords6 versionspkg:apk/chainguard/druid-compatpkg:apk/chainguard/hadoop-fips-3.3.6pkg:apk/wolfi/druid-compatpkg:maven/io.netty/nettypkg:maven/io.netty/netty-codec-httppkg:maven/org.jboss.netty/netty
< 34.0.0-r6+ 5 more
- (no CPE)range: < 34.0.0-r6
- (no CPE)range: < 3.3.6-r0
- (no CPE)range: < 34.0.0-r6
- (no CPE)range: >= 0
- (no CPE)range: < 4.1.44
- (no CPE)range: >= 0
Patches
Vulnerability mechanics
References
122- access.redhat.com/errata/RHSA-2020:0497ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0567ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0601ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0605ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0606ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0804ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0805ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0806ghsavendor-advisoryWEB
- access.redhat.com/errata/RHSA-2020:0811ghsavendor-advisoryWEB
- github.com/advisories/GHSA-cqqj-4p63-rrmmghsaADVISORY
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TS6VX7OMXPDJIU5LRGUAHRK6MENAVJ46/mitrevendor-advisory
- nvd.nist.gov/vuln/detail/CVE-2019-20444ghsaADVISORY
- usn.ubuntu.com/4532-1/mitrevendor-advisory
- www.debian.org/security/2021/dsa-4885ghsavendor-advisoryWEB
- github.com/netty/netty/compare/netty-4.1.43.Final...netty-4.1.44.FinalghsaWEB
- github.com/netty/netty/issues/9866ghsaWEB
- github.com/netty/netty/pull/9871ghsaWEB
- github.com/netty/netty/pull/9871/filesghsaWEB
- github.com/poc-effectiveness/PoCAdaptation/tree/main/Adapted/CVE-2019-20444/5.0.0.Alpha1/exploitghsaWEB
- lists.apache.org/thread.html/r059b042bca47be53ff8a51fd04d95eb01bb683f1afa209db136e8cb7%40%3Cdev.zookeeper.apache.org%3EghsaWEB
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