VULNERABILITY INTELLIGENCE
CVE-2020-13934
CVSS score7.5 HIGH
EPSS probability64.12%
CISA KEVNot currently listed
Published2020-07-14
Last modified2026-10-08
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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.
Weakness classification
- nvd@nist.gov: CWE-401
Primary references
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org — Mailing List, Release Notes, Vendor Advisory
- security@apache.org
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Third Party Advisory
- security@apache.org — Patch, Third Party Advisory
- security@apache.org — Patch, Third Party Advisory
- security@apache.org — Patch, Third Party Advisory
- security@apache.org — Patch, Third Party Advisory