CVE-2016-8740

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
The mod_http2 module in the Apache HTTP Server 2.4.17 through 2.4.23, when the Protocols configuration includes h2 or h2c, does not restrict request-header length, which allows remote attackers to cause a denial of service (memory consumption) via crafted CONTINUATION frames in an HTTP/2 request.
Overview
  • CVE ID
  • CVE-2016-8740
  • Assigner
  • security@apache.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2016-12-05T19:59:00
  • Last Modified Date
  • 2021-06-06T11:15:19
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:http_server:2.4.19:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:http_server:2.4.21:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:http_server:2.4.22:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/apache/httpd/commit/29c63b786ae028d82405421585e91283c8fa0da3 Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/94650 Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/40909/ Exploit Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037388 Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/140023/Apache-HTTPD-Web-Server-2.4.23-Memory-Exhaustion.html Exploit Third Party Advisory VDB Entry
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us
https://security.gentoo.org/glsa/201701-36
https://www.tenable.com/security/tns-2017-04
https://support.apple.com/HT208221
https://access.redhat.com/errata/RHSA-2017:1414
https://access.redhat.com/errata/RHSA-2017:1413
https://access.redhat.com/errata/RHSA-2017:1161
http://rhn.redhat.com/errata/RHSA-2017-1415.html
https://security.netapp.com/advisory/ntap-20180423-0001/
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E
History
Created Old Value New Value Data Type Notes
2022-05-10 16:12:35 Added to TrackCVE
2022-12-02 12:16:22 2016-12-05T19:59Z 2016-12-05T19:59:00 CVE Published Date updated
2022-12-02 12:16:22 2021-06-06T11:15:19 CVE Modified Date updated
2022-12-02 12:16:22 Modified Vulnerability Status updated