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Apache Tomcat: Request header mix-up between HTTP/2 streams

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2020-17527

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2020-17527

Apache Tomcat

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "Apache Software Foundation",
    "product": "Apache Tomcat",
    "versions": [
      {
        "status": "affected",
        "version": "Apache Tomcat 10 10.0.0-M1 to 10.0.0-M9"
      },
      {
        "status": "affected",
        "version": "Apache Tomcat 9 9.0.0-M1 to 9.0.39"
      },
      {
        "status": "affected",
        "version": "Apache Tomcat 8.5 8.5.0 to 8.5.59"
      }
    ]
  }
]
Related CVEs
CVE-2020-17527

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#15970 · Revision 1
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Publisher date
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