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UnratedApache Software Foundation

CVE-2020-13934: 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

This Apache advisory covers CVE-2020-13934 in Apache Tomcat.

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Key facts

CISA KEV
Not listed (catalogue checked )
Affected
Apache Tomcat Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36, 8.5.1 to 8.5.56
Fixed in
10.0.0, 9.0.0, 9.0.36 and 2 more below
Source published
Source revised
Listed by VulniPulse

Compiled by VulniPulse from the linked sources. How records are collected and checked.

Affected products & platforms

Apache Software FoundationTomcat

Description

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 OutOfMemoryException could occur leading to a denial of service.

Text from the source record.

Affected versions
  • Apache Tomcat Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36, 8.5.1 to 8.5.56

Official advisory · medium-confidence parse· fetched ·verify at source

How to fix CVE-2020-13934

Upgrade to a fixed release named by Apache:

  • 10.0.0
  • 9.0.0
  • 9.0.36
  • 8.5.1
  • 8.5.56

Vendor guidance

  • 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.

Support dates for the fixed release lines

All end-of-life dates for Apache Tomcat

Apache Software Foundation advisories, July 2020All Apache Software Foundation advisories

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