CVE-2020-17527: Apache Tomcat: Request header mix-up between HTTP/2 streams
This Apache advisory covers CVE-2020-17527 in Apache Tomcat.
- CVE-2020-17527
Key facts
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Apache Tomcat Apache Tomcat 10 10.0.0-M1 to 10.0.0-M9; Apache Tomcat Apache Tomcat 9 9.0.0-M1 to 9.0.39; Apache Tomcat Apache Tomcat 8.5 8.5.0 to 8.5.59
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
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.
Text from the source record.
- Apache Tomcat Apache Tomcat 10 10.0.0-M1 to 10.0.0-M9
- Apache Tomcat Apache Tomcat 9 9.0.0-M1 to 9.0.39
- Apache Tomcat Apache Tomcat 8.5 8.5.0 to 8.5.59
Official advisory · medium-confidence parse· fetched ·verify at source
End-of-life dates for Apache Tomcat
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Apache Software Foundation advisories, December 2020All Apache Software Foundation advisories
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