medium
5.3
CWE
200
Advisory Published
CVE Published
Advisory Published
Updated

CVE-2020-13943: Infoleak

First published: Mon Oct 12 2020(Updated: )

A flaw was found in Apache Tomcat. If an HTTP/2 client exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it is possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources. The highest threat from this vulnerability is to data confidentiality.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
maven/org.apache.tomcat:tomcat-coyote>=8.5.0<=8.5.57
8.5.58
maven/org.apache.tomcat:tomcat-coyote>=9.0.0-M1<=9.0.37
9.0.38
maven/org.apache.tomcat:tomcat-coyote>=10.0.0-M1<=10.0.0-M7
10.0.0-M8
redhat/jws5-tomcat<0:9.0.36-9.redhat_8.1.el7
0:9.0.36-9.redhat_8.1.el7
redhat/jws5-tomcat-native<0:1.2.25-3.redhat_3.el7
0:1.2.25-3.redhat_3.el7
redhat/jws5-tomcat<0:9.0.36-9.redhat_8.1.el8
0:9.0.36-9.redhat_8.1.el8
redhat/jws5-tomcat-native<0:1.2.25-3.redhat_3.el8
0:1.2.25-3.redhat_3.el8
Apache Tomcat=8.5.0
Apache Tomcat=8.5.1
Apache Tomcat=8.5.2
Apache Tomcat=8.5.3
Apache Tomcat=8.5.4
Apache Tomcat=8.5.5
Apache Tomcat=8.5.6
Apache Tomcat=8.5.7
Apache Tomcat=8.5.8
Apache Tomcat=8.5.9
Apache Tomcat=8.5.10
Apache Tomcat=8.5.11
Apache Tomcat=8.5.12
Apache Tomcat=8.5.13
Apache Tomcat=8.5.14
Apache Tomcat=8.5.15
Apache Tomcat=8.5.16
Apache Tomcat=8.5.17
Apache Tomcat=8.5.18
Apache Tomcat=8.5.19
Apache Tomcat=8.5.20
Apache Tomcat=8.5.21
Apache Tomcat=8.5.22
Apache Tomcat=8.5.23
Apache Tomcat=8.5.24
Apache Tomcat=8.5.25
Apache Tomcat=8.5.26
Apache Tomcat=8.5.27
Apache Tomcat=8.5.28
Apache Tomcat=8.5.29
Apache Tomcat=8.5.30
Apache Tomcat=8.5.31
Apache Tomcat=8.5.32
Apache Tomcat=8.5.33
Apache Tomcat=8.5.34
Apache Tomcat=8.5.35
Apache Tomcat=8.5.36
Apache Tomcat=8.5.37
Apache Tomcat=8.5.38
Apache Tomcat=8.5.39
Apache Tomcat=8.5.40
Apache Tomcat=8.5.41
Apache Tomcat=8.5.42
Apache Tomcat=8.5.43
Apache Tomcat=8.5.44
Apache Tomcat=8.5.45
Apache Tomcat=8.5.46
Apache Tomcat=8.5.47
Apache Tomcat=8.5.48
Apache Tomcat=8.5.49
Apache Tomcat=8.5.50
Apache Tomcat=8.5.51
Apache Tomcat=8.5.52
Apache Tomcat=8.5.53
Apache Tomcat=8.5.54
Apache Tomcat=8.5.55
Apache Tomcat=8.5.56
Apache Tomcat=8.5.57
Apache Tomcat=9.0.0-milestone10
Apache Tomcat=9.0.0-milestone11
Apache Tomcat=9.0.0-milestone12
Apache Tomcat=9.0.0-milestone13
Apache Tomcat=9.0.0-milestone14
Apache Tomcat=9.0.0-milestone15
Apache Tomcat=9.0.0-milestone16
Apache Tomcat=9.0.0-milestone17
Apache Tomcat=9.0.0-milestone18
Apache Tomcat=9.0.0-milestone19
Apache Tomcat=9.0.0-milestone20
Apache Tomcat=9.0.0-milestone21
Apache Tomcat=9.0.0-milestone22
Apache Tomcat=9.0.0-milestone23
Apache Tomcat=9.0.0-milestone24
Apache Tomcat=9.0.0-milestone25
Apache Tomcat=9.0.0-milestone26
Apache Tomcat=9.0.0-milestone27
Apache Tomcat=9.0.0-milestone5
Apache Tomcat=9.0.0-milestone6
Apache Tomcat=9.0.0-milestone7
Apache Tomcat=9.0.0-milestone8
Apache Tomcat=9.0.0-milestone9
Apache Tomcat=9.0.1
Apache Tomcat=9.0.2
Apache Tomcat=9.0.3
Apache Tomcat=9.0.4
Apache Tomcat=9.0.5
Apache Tomcat=9.0.6
Apache Tomcat=9.0.7
Apache Tomcat=9.0.8
Apache Tomcat=9.0.9
Apache Tomcat=9.0.10
Apache Tomcat=9.0.11
Apache Tomcat=9.0.12
Apache Tomcat=9.0.13
Apache Tomcat=9.0.14
Apache Tomcat=9.0.15
Apache Tomcat=9.0.16
Apache Tomcat=9.0.17
Apache Tomcat=9.0.18
Apache Tomcat=9.0.19
Apache Tomcat=9.0.20
Apache Tomcat=9.0.21
Apache Tomcat=9.0.22
Apache Tomcat=9.0.23
Apache Tomcat=9.0.24
Apache Tomcat=9.0.25
Apache Tomcat=9.0.26
Apache Tomcat=9.0.27
Apache Tomcat=9.0.28
Apache Tomcat=9.0.29
Apache Tomcat=9.0.30
Apache Tomcat=9.0.31
Apache Tomcat=9.0.32
Apache Tomcat=9.0.33
Apache Tomcat=9.0.34
Apache Tomcat=9.0.35
Apache Tomcat=9.0.36
Apache Tomcat=9.0.37
Apache Tomcat=10.0.0-milestone1
Apache Tomcat=10.0.0-milestone2
Apache Tomcat=10.0.0-milestone3
Apache Tomcat=10.0.0-milestone4
Apache Tomcat=10.0.0-milestone5
Apache Tomcat=10.0.0-milestone6
Apache Tomcat=10.0.0-milestone7
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Oracle Instantis Enterprisetrack=17.1
Oracle Instantis Enterprisetrack=17.2
Oracle Instantis Enterprisetrack=17.3
Oracle SD-WAN Edge=9.0
IBM IBM® Engineering Requirements Management DOORS<=9.7.2.7
IBM IBM® Engineering Requirements Management DOORS Web Access<=9.7.2.7
redhat/tomcat<10.0.0
10.0.0
redhat/tomcat<9.0.38
9.0.38
redhat/tomcat<8.5.58
8.5.58
debian/tomcat9
9.0.43-2~deb11u10
9.0.70-2
9.0.95-1

Remedy

https://www.oracle.com/security-alerts/cpuApr2021.html

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