CVE-2020-1935

Public on 2020-03-09
Modified on 2021-08-20
Description
A flaw was found in Apache Tomcat. The HTTP header parsing code used an approach to end-of-line (EOL) parsing that allowed some invalid HTTP headers to be parsed as valid. This led to the 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. The highest threat with this vulnerability is system availability.
Severity
Low
CVSS v3 Base Score
4.3
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 tomcat7 2021-01-12 22:52 ALAS-2021-1472
Amazon Linux 1 tomcat7 2020-03-09 19:20 ALAS-2020-1352
Amazon Linux 1 tomcat8 2020-03-09 19:21 ALAS-2020-1353
Amazon Linux 1 tomcat7 2021-01-12 22:52 ALAS-2021-1472
Amazon Linux 1 tomcat7 2020-03-09 19:20 ALAS-2020-1352

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
NVD CVSSv2 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N
NVD CVSSv3 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N