Vulnerability in Netty
CVE-2020-7238
Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.036 (89.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.036 · newest: 0.036 · change: 0.000
Affected products
- Netty — versions 4.1.43
- Debian Linux — versions 8.0, 9.0, 10.0
- Fedoraproject Fedora — versions 33
- Red Hat Jboss Enterprise Application Platform — versions 7.2, 7.3, 7.4
- Red Hat Jboss Enterprise Application Platform Text-Only Advisories
- Red Hat Openshift Application Runtimes Text-Only Advisories
Weakness classification (CWE)
References
- netty.io/news/ (Vendor Advisory)
- github.com/jdordonezn/CVE-2020-72381/issues/1 (Exploit, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0497 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/02/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/02/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0601 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0606 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0605 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0567 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2020:0806 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7238?
- CVE-2020-7238 is a high-severity vulnerability in Netty, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.5/10. Published 2020-01-27.
- How severe is CVE-2020-7238?
- High severity. CVSS v3 base score is 7.5 out of 10.