← back
CVE-2016-8740

CVE-2016-8740

45Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 79%
from disclosure to weapon7 days
Published on NVDDec 5
1st PoC+7d
exploitation probability
79%top 1% of all CVEs
observed exploitation
nono source reports it
5 public exploit(s)
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.
Affected products
Apache Software Foundation · Apache HTTP Server
public PoCs found — 5
exploitdbwww.exploit-db.com/exploits/40909unverifiedgithubgithub.com/lcfpadilha/mac0352-ep4★ 1githubgithub.com/jptr218/apachedos★ 1cve_referencepacketstormsecurity.com/files/140023/Apache-HTTPD-Web-Server-2.4.23-Memory-Exhaustion.htmlunverifiedcve_referencewww.exploit-db.com/exploits/40909/unverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
http://packetstormsecurity.com/files/140023/Apache-HTTPD-Web-Server-2.4.23-Memory-Exhaustion.htmlhttp://rhn.redhat.com/errata/RHSA-2017-1415.htmlhttps://access.redhat.com/errata/RHSA-2017:1161https://access.redhat.com/errata/RHSA-2017:1413https://access.redhat.com/errata/RHSA-2017:1414https://github.com/apache/httpd/commit/29c63b786ae028d82405421585e91283c8fa0da3https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_ushttps://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3Ehttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E