{"schema_version":"1.7.5","id":"GHSA-vf77-8h7g-gghp","published":"2022-02-08T22:05:00Z","modified":"2026-05-20T19:00:24.796492724Z","aliases":["BIT-tomcat-2020-13934","CVE-2020-13934"],"summary":"Improper Restriction of Operations within the Bounds of a Memory Buffer in Apache Tomcat","details":"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.","affected":[{"package":{"name":"org.apache.tomcat:tomcat","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0-M1"},{"fixed":"10.0.0-M6"}]}],"versions":["10.0.0-M1","10.0.0-M3","10.0.0-M4","10.0.0-M5"],"database_specific":{"last_known_affected_version_range":"<= 10.0.0-M5","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json"}},{"package":{"name":"org.apache.tomcat:tomcat","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0.M5"},{"fixed":"9.0.36"}]}],"versions":["9.0.0.M10","9.0.0.M11","9.0.0.M13","9.0.0.M15","9.0.0.M17","9.0.0.M18","9.0.0.M19","9.0.0.M20","9.0.0.M21","9.0.0.M22","9.0.0.M25","9.0.0.M26","9.0.0.M27","9.0.0.M6","9.0.0.M8","9.0.0.M9","9.0.1","9.0.10","9.0.11","9.0.12","9.0.13","9.0.14","9.0.16","9.0.17","9.0.19","9.0.2","9.0.20","9.0.21","9.0.22","9.0.24","9.0.26","9.0.27","9.0.29","9.0.30","9.0.31","9.0.33","9.0.34","9.0.35","9.0.4","9.0.5","9.0.6","9.0.7","9.0.8"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json"}},{"package":{"name":"org.apache.tomcat:tomcat","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.1"},{"fixed":"8.5.56"}]}],"versions":["8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.16","8.5.19","8.5.2","8.5.20","8.5.21","8.5.23","8.5.24","8.5.27","8.5.28","8.5.29","8.5.3","8.5.30","8.5.31","8.5.32","8.5.33","8.5.34","8.5.35","8.5.37","8.5.38","8.5.39","8.5.4","8.5.40","8.5.41","8.5.42","8.5.43","8.5.45","8.5.46","8.5.47","8.5.49","8.5.5","8.5.50","8.5.51","8.5.53","8.5.54","8.5.55","8.5.6","8.5.8","8.5.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json"}},{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0-M1"},{"fixed":"10.0.0-M6"}]}],"versions":["10.0.0-M1","10.0.0-M3","10.0.0-M4","10.0.0-M5"],"database_specific":{"last_known_affected_version_range":"<= 10.0.0-M5","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json"}},{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0.M5"},{"fixed":"9.0.36"}]}],"versions":["9.0.0.M10","9.0.0.M11","9.0.0.M13","9.0.0.M15","9.0.0.M17","9.0.0.M18","9.0.0.M19","9.0.0.M20","9.0.0.M21","9.0.0.M22","9.0.0.M25","9.0.0.M26","9.0.0.M27","9.0.0.M6","9.0.0.M8","9.0.0.M9","9.0.1","9.0.10","9.0.11","9.0.12","9.0.13","9.0.14","9.0.16","9.0.17","9.0.19","9.0.2","9.0.20","9.0.21","9.0.22","9.0.24","9.0.26","9.0.27","9.0.29","9.0.30","9.0.31","9.0.33","9.0.34","9.0.35","9.0.4","9.0.5","9.0.6","9.0.7","9.0.8"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json"}},{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.1"},{"fixed":"8.5.56"}]}],"versions":["8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.16","8.5.19","8.5.2","8.5.20","8.5.21","8.5.23","8.5.24","8.5.27","8.5.28","8.5.29","8.5.3","8.5.30","8.5.31","8.5.32","8.5.33","8.5.34","8.5.35","8.5.37","8.5.38","8.5.39","8.5.4","8.5.40","8.5.41","8.5.42","8.5.43","8.5.45","8.5.46","8.5.47","8.5.49","8.5.5","8.5.50","8.5.51","8.5.53","8.5.54","8.5.55","8.5.6","8.5.8","8.5.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-vf77-8h7g-gghp/GHSA-vf77-8h7g-gghp.json"}}],"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13934"},{"type":"PACKAGE","url":"https://github.com/apache/tomcat"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r61f411cf82488d6ec213063fc15feeeb88e31b0ca9c29652ee4f962e%40%3Cannounce.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/ra072b1f786e7d139e86f1d1145572e0ff71cef38a96d9c6f5362aac8@%3Cdev.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/07/msg00017.html"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20200724-0003"},{"type":"WEB","url":"https://usn.ubuntu.com/4596-1"},{"type":"WEB","url":"https://www.debian.org/security/2020/dsa-4727"},{"type":"WEB","url":"https://www.oracle.com//security-alerts/cpujul2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2021.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpujan2022.html"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuoct2020.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00084.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00088.html"}],"database_specific":{"cwe_ids":["CWE-119","CWE-476"],"github_reviewed":true,"github_reviewed_at":"2021-04-12T18:34:04Z","nvd_published_at":"2020-07-14T15:15:00Z","severity":"HIGH"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}