CVE-2020-1935

Published: 24 February 2020

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.

Priority

Low

CVSS 3 base score: 4.8

Status

Package Release Status
tomcat7
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 LTS (Xenial Xerus) Needs triage

Ubuntu 14.04 ESM (Trusty Tahr) Needs triage

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/apache/tomcat/commit/702bf15bea292915684d931526d95d4990b2e73d (7.0.100)
tomcat8
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 20.10 (Groovy Gorilla) Does not exist

Ubuntu 20.04 LTS (Focal Fossa) Does not exist

Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 LTS (Xenial Xerus)
Released (8.0.32-1ubuntu1.13)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/apache/tomcat/commit/8fbe2e962f0ea138d92361921643fe5abe0c4f56 (8.5.51)
tomcat9
Launchpad, Ubuntu, Debian
Upstream
Released (9.0.31-1)
Ubuntu 20.10 (Groovy Gorilla) Not vulnerable
(9.0.31-1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(9.0.31-1)
Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 LTS (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

Ubuntu 12.04 ESM (Precise Pangolin) Does not exist

Patches:
Upstream: https://github.com/apache/tomcat/commit/8bfb0ff7f25fe7555a5eb2f7984f73546c11aa26 (9.0.31)