CVE-2017-5850

Public Exploit

Description

httpd in OpenBSD allows remote attackers to cause a denial of service (memory consumption) via a series of requests for a large file using an HTTP Range header.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 49.59% Top 5%
Vendor Advisory openbsd.org Vendor Advisory openbsd.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2017/02/02/6 third party advisory mailing list
https://pierrekim.github.io/blog/2017-02-07-openbsd-httpd-CVE-2017-5850.html exploit third party advisory patch
http://www.securityfocus.com/bid/95997 vdb entry third party advisory
https://github.com/openbsd/src/commit/142cfc82b932bc211218fbd7bdda8c7ce83f19df third party advisory patch
https://www.exploit-db.com/exploits/41278/ patch exploit vdb entry third party advisory
http://www.securitytracker.com/id/1037758 vdb entry third party advisory
http://marc.info/?l=openbsd-cvs&m=148587359420912&w=2 third party advisory mailing list
https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/034_httpd.patch.sig patch vendor advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/017_httpd.patch.sig patch vendor advisory
http://seclists.org/fulldisclosure/2017/Feb/15 mailing list vdb entry third party advisory
http://packetstormsecurity.com/files/140944/OpenBSD-HTTP-Server-6.0-Denial-Of-Service.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-5850?
CVE-2017-5850 has been scored as a high severity vulnerability.
How to fix CVE-2017-5850?
To fix CVE-2017-5850, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-5850 being actively exploited in the wild?
It is possible that CVE-2017-5850 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~50% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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