CVE-2020-17527
High
Description
While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Tomcat
PublishedDec 3, 2020
First seenDec 3, 2020
Weakness typeCWE-200Sensitive information exposure
How to fix
Update
- oracle blockchain_platform21.1.2 or later
- oracle mysql_enterprise_monitor8.0.23 or later
- org.apache.tomcat:tomcat-coyote10.0.0-M10, 9.0.40, 8.5.60 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache tomcat | 8.5.1 ≤ v ≤ 8.5.59, 9.0.1 ≤ v ≤ 9.0.35, 9.0.0, 9.0.35-3.39.1, 9.0.35-3.57.3, 9.0.36, 9.0.37, 9.0.38, 9.0.39, 10.0.0 | — |
| netapp element_plug-in | No range specified | — |
| netapp oncommand_system_manager | 3.0.0 ≤ v ≤ 3.1.3 | — |
| debian debian_linux | 9.0, 10.0 | — |
| oracle blockchain_platform | v < 21.1.2 | 21.1.2 |
| oracle communications_cloud_native_core_binding_support_function | 1.10.0 | — |
| oracle communications_cloud_native_core_policy | 1.14.0 | — |
| oracle communications_instant_messaging_server | 10.0.1.5.0 | — |
| oracle instantis_enterprisetrack | 17.1, 17.2, 17.3 | — |
| oracle mysql_enterprise_monitor | v < 8.0.23 | 8.0.23 |
| oracle sd-wan_edge | 9.0 | — |
| oracle workload_manager | 18c, 19c | — |
| org.apache.tomcat:tomcat-coyoteMaven | 10.0.0-M1 ≤ v < 10.0.0-M10, 9.0.0-M1 ≤ v < 9.0.40, 8.5.0 ≤ v < 8.5.60 | 10.0.0-M10, 9.0.40, 8.5.60 |
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