CVE-2020-11996
- Source
- https://cve.org/CVERecord?id=CVE-2020-11996
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11996.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-11996
- Aliases
- Downstream
- Related
- Published
- 2020-06-26T17:15:10.153Z
- Modified
- 2026-03-15T22:30:50.721426Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive.
- References
-
- https://lists.apache.org/thread.html/r8f7484589454638af527182ae55ef5b628ba00c05c5b11887c922fb1%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/rc80b96b4b96618b2b7461cb90664a428cfd6605eea9f74e51b792542%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/rea65d6ef2e45dd1c45faae83922042732866c7b88fa109b76c83db52%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r6c29801370a36c1a5159679269777ad0c73276d3015b8bbefea66e5c%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/rb820f1a2a02bf07414be12c653c2ab5321fd87b9bf6c5e635c53ff4b%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r74f5a8204efe574cbfcd95b2a16236fe95beb45c4d9fee3dc789dca9%40%3Ccommits.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r8f3d416c193bc9384a8a7dd368623d441f5fcaff1057115008100561%40%3Ccommits.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/rb4ee49ecc4c59620ffd5e66e84a17e526c2c3cfa95d0cd682d90d338%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/ref0339792ac6dac1dba83c071a727ad72380899bde60f6aaad4031b9%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/ra7092f7492569b39b04ec0decf52628ba86c51f15efb38f5853e2760%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r3ea96d8f36dd404acce83df8aeb22a9e807d6c13ca9c5dec72f872cd%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r5a4f80a6acc6607d61dae424b643b594c6188dd4e1eff04705c10db2%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r93ca628ef3a4530dfe5ac49fddc795f0920a4b2a408b57a30926a42b%40%3Ccommits.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r9ad911fe49450ed9405827af0e7a74104041081ff91864b1f2546bbd%40%3Cnotifications.ofbiz.apache.org%3E
- https://lists.apache.org/thread.html/r2529016c311ce9485e6f173446d469600fdfbb94dccadfcd9dfdac79%40%3Cusers.tomcat.apache.org%3E
- https://www.debian.org/security/2020/dsa-4727
- https://www.oracle.com/security-alerts/cpuoct2020.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00064.html
- https://lists.apache.org/thread.html/r5541ef6b6b68b49f76fc4c45695940116da2bcbe0312ef204a00a2e0%40%3Cannounce.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2020/07/msg00010.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00072.html
- https://security.netapp.com/advisory/ntap-20200709-0002/
- https://usn.ubuntu.com/4596-1/
Affected packages
Git / github.com/apache/tomcat
Affected ranges
- Type
- GIT
- Repo
- https://github.com/apache/tomcat
- Events
-
IntroducedLast affectedIntroducedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affectedIntroduced0 Unknown introduced commit / All previous commits are affectedLast affected
- Database specific
{ "versions": [ { "introduced": "8.5.0" }, { "last_affected": "8.5.55" }, { "introduced": "9.0.0" }, { "last_affected": "9.0.35" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone1" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone10" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone11" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone12" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone13" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone14" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone15" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone16" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone17" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone18" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone19" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone2" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone20" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone21" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone22" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone23" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone24" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone25" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone26" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone27" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone3" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone4" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone5" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone6" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone7" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone8" }, { "introduced": "0" }, { "last_affected": "9.0.0-milestone9" }, { "introduced": "0" }, { "last_affected": "10.0.0-milestone1" }, { "introduced": "0" }, { "last_affected": "10.0.0-milestone2" }, { "introduced": "0" }, { "last_affected": "10.0.0-milestone3" }, { "introduced": "0" }, { "last_affected": "10.0.0-milestone4" }, { "introduced": "0" }, { "last_affected": "10.0.0-milestone5" }, { "introduced": "0" }, { "last_affected": "9.0" }, { "introduced": "0" }, { "last_affected": "10.0" } ] }
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11996.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.04"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "8.0.21"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "20.12"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "12.2.0.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "18c"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "19c"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "15.2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.0"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "3.1.3"
}
]
}
]