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If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was...
2 affected packages
tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat8 | — | — | Not in release | Not affected |
| tomcat9 | — | — | Not affected | Not affected |
Some fixes available 2 of 10
The payload length in a WebSocket frame was not correctly validated in Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M1 to 9.0.36, 8.5.0 to 8.5.56 and 7.0.27 to 7.0.104. Invalid payload lengths could trigger an infinite loop....
4 affected packages
tomcat6, tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat6 | Not in release | Not in release | Not in release | Not in release |
| tomcat7 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat8 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat9 | Not affected | Not affected | Fixed | Needs evaluation |
Some fixes available 1 of 8
An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an...
4 affected packages
tomcat6, tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat6 | Not in release | Not in release | Not in release | Not in release |
| tomcat7 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat8 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat9 | Not affected | Not affected | Fixed | Needs evaluation |
Some fixes available 1 of 4
A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were...
2 affected packages
tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat8 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat9 | Not affected | Not affected | Fixed | Needs evaluation |
Some fixes available 7 of 8
When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured...
3 affected packages
tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat7 | Not in release | Not in release | Not in release | Fixed |
| tomcat8 | Not in release | Not in release | Not in release | Fixed |
| tomcat9 | Not affected | Not affected | Fixed | Fixed |
When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP connection. If such...
3 affected packages
tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat7 | Not in release | Not in release | Not in release | Ignored |
| tomcat8 | Not in release | Not in release | Not in release | Ignored |
| tomcat9 | Not affected | Not affected | Not affected | Ignored |
Some fixes available 1 of 7
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...
3 affected packages
tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat7 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat8 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat9 | Not affected | Not affected | Not affected | Needs evaluation |
The refactoring present in Apache Tomcat 9.0.28 to 9.0.30, 8.5.48 to 8.5.50 and 7.0.98 to 7.0.99 introduced a regression. The result of the regression was that invalid Transfer-Encoding headers were incorrectly processed leading...
3 affected packages
tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat7 | — | — | — | Not affected |
| tomcat8 | — | — | — | Not affected |
| tomcat9 | — | — | — | Not affected |
Some fixes available 1 of 8
When Apache Tomcat 9.0.0.M1 to 9.0.28, 8.5.0 to 8.5.47, 7.0.0 and 7.0.97 is configured with the JMX Remote Lifecycle Listener, a local attacker without access to the Tomcat process or configuration files is able to manipulate the...
3 affected packages
tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat7 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat8 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat9 | Not affected | Not affected | Not affected | Needs evaluation |
Some fixes available 1 of 8
When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow...
3 affected packages
tomcat7, tomcat8, tomcat9
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
|---|---|---|---|---|
| tomcat7 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat8 | Not in release | Not in release | Not in release | Needs evaluation |
| tomcat9 | Not affected | Not affected | Not affected | Needs evaluation |