CVE-2019-16869
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability95. percentile8.6%
Product
Netty
PublishedSep 26, 2019
First seenSep 26, 2019
How to fix
Update
- netty netty4.1.42 or later
- io.netty:netty-all4.1.42.Final or later
Vendor advisories
- access.redhat.com/errata/RHSA-2019:3892
- access.redhat.com/errata/RHSA-2019:3901
- debian.org/security/2020/dsa-4597
- access.redhat.com/errata/RHSA-2020:0164
- access.redhat.com/errata/RHSA-2020:0159
- access.redhat.com/errata/RHSA-2020:0160
- access.redhat.com/errata/RHSA-2020:0161
- access.redhat.com/errata/RHSA-2020:0445
- usn.ubuntu.com/4532-1/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| netty netty | v < 4.1.42 | 4.1.42 |
| debian debian_linux | 8.0, 9.0, 10.0 | — |
| canonical ubuntu_linux | 18.04 | — |
| redhat jboss_enterprise_application_platform | 7.2, 7.3, 7.4 | — |
| io.netty:netty-allMaven | 4.0.0.Beta1 ≤ v < 4.1.42.Final | 4.1.42.Final |
| org.jboss.netty:nettyMaven | v ≤ 3.2.9.Final | — |
| io.netty:nettyMaven | 3.3.0.Final ≤ v ≤ 4.0.0.Alpha8 | — |
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