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01 Record

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

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

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

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
3.64% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 89.2% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-01-27 16:43Z6 YR AGO
Last updated
2024-08-04 09:25Z2 YR AGO
Reserved
2020-01-20
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')Base
Data version
5.1
Document digest
87364d0cb4429bc3282c52a8d12d22a382779014b3d81bb3c202b8fc2163d5a8

05 Affected products

VendorProductVersionsPlatforms
debiandebian_linuxNot specified—
fedoraprojectfedoraNot specified—
nettynettyNot specified—
redhata_mq_clientsNot specified—
redhatamq_brokerNot specified—
redhatamq_onlineNot specified—
redhatamq_streamsNot specified—
redhatenterprise_mrgNot specified—
redhatjboss_amqNot specified—
redhatjboss_data_gridNot specified—
redhatjboss_data_virtualizationNot specified—
redhatjboss_enterprise_application_platformNot specified—
redhatjboss_enterprise_application_platform_cdNot specified—
redhatjboss_enterprise_application_platform_eusNot specified—
redhatjboss_enterprise_application_platform_text-only_advisoriesNot specified—
redhatjboss_enterprise_bpms_platformNot specified—
redhatjboss_enterprise_brms_platformNot specified—
redhatjboss_enterprise_soa_platformNot specified—
redhatjboss_fuseNot specified—
redhatjboss_fuse_service_worksNot specified—
redhatjboss_operations_networkNot specified—
redhatjboss_single_sign_onNot specified—
redhatopenshiftNot specified—
redhatopenshift_application_runtimesNot specified—
redhatopenshift_application_runtimes_text-only_advisoriesNot specified—
redhatopenstackNot specified—
redhatsatelliteNot specified—
redhatsatellite_capsuleNot specified—

06 References

07 Fixed in

Debian 12

  • netty
    Fixed in 1:4.1.45-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • netty
    Fixed in 1:4.1.45-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • netty
    Fixed in 1:4.1.45-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 16.04 LTS

  • netty-3.9
    Fixed in 3.9.0.Final-1ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • netty
    Fixed in 1:3.2.6.Final-2+deb8u2build0.14.04.1~esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • netty
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • netty
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.