Vulnerability in Netty
CVE-2019-16869
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.
Vulnerability class: HTTP Request Smuggling
EPSS: 0.084 (94.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Netty
- Canonical Ubuntu_linux — versions 18.04
- Debian Debian_linux — versions 8.0, 9.0, 10.0
- Redhat Enterprise_linux — versions 6.0, 7.0, 8.0
- Redhat Jboss_enterprise_application_platform — versions 7.2, 7.3, 7.4
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list)
- cve@mitre.org (mailing-list)
Frequently asked questions
- What is CVE-2019-16869?
- CVE-2019-16869 is a high-severity vulnerability in Netty, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2019-09-26.
- How severe is CVE-2019-16869?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-16869 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.