https://bugzilla.redhat.com/show_bug.cgi?id=1904221
Bug ID: 1904221
Summary: CVE-2020-17527 tomcat: HTTP/2 request header mix-up
Product: Security Response
Hardware: All
OS: Linux
Status: NEW
Component: vulnerability
Keywords: Security
Severity: medium
Priority: medium
Assignee: security-response-team(a)redhat.com
Reporter: gsuckevi(a)redhat.com
CC: aboyko(a)redhat.com, aileenc(a)redhat.com,
akoufoud(a)redhat.com, alazarot(a)redhat.com,
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tom.jenkinson(a)redhat.com, vhalbert(a)redhat.com,
weli(a)redhat.com
Target Milestone: ---
Classification: Other
While investigating Bug 64830 it was discovered that Apache Tomcat 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.
Reference:
https://lists.apache.org/thread.html/rce5ac9a40173651d540babce59f6f3825f1...
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