CVE-2016-8740

MEDIUM

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.

References

http://packetstormsecurity.com/files/140023/Apache-HTTPD-Web-Server-2.4.23-Memory-Exhaustion.html

http://rhn.redhat.com/errata/RHSA-2017-1415.html

http://www.securityfocus.com/bid/94650

http://www.securitytracker.com/id/1037388

https://access.redhat.com/errata/RHSA-2017:1161

https://access.redhat.com/errata/RHSA-2017:1413

https://access.redhat.com/errata/RHSA-2017:1414

https://github.com/apache/httpd/commit/29c63b786ae028d82405421585e91283c8fa0da3

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://security.netapp.com/advisory/ntap-20180423-0001/

https://support.apple.com/HT208221

https://www.exploit-db.com/exploits/40909/

https://www.tenable.com/security/tns-2017-04

Details

Source: MITRE

Published: 2016-12-05

Updated: 2018-04-25

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 5

Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH