CVE-2019-16869
HIGH severity · CVSS 7.5 · CWE-444
7.5CVSS HIGH
Summary
Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)8%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://github.com/netty/netty/compare/netty-4.1.41.Final...netty-4.1.42.Final ↗
Additional information
- NVD record
- https://github.com/netty/netty/compare/netty-4.1.41.Final...netty-4.1.42.FinalPatch
- https://access.redhat.com/errata/RHSA-2019:3892Advisory
- https://access.redhat.com/errata/RHSA-2019:3901Advisory
- https://access.redhat.com/errata/RHSA-2020:0159Advisory
- https://access.redhat.com/errata/RHSA-2020:0160Advisory
- https://access.redhat.com/errata/RHSA-2020:0161Advisory
- https://access.redhat.com/errata/RHSA-2020:0164Advisory
- https://access.redhat.com/errata/RHSA-2020:0445Advisory