CVE-2018-1000164

Public Exploit

Description

gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/http/wsgi.py" that can result in an attacker causing the server to return arbitrary HTTP headers. This vulnerability appears to have been fixed in 19.5.0.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.48% Top 20%
Vendor Advisory debian.org Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://epadillas.github.io/2018/04/02/http-header-splitting-in-gunicorn-19.4.5 third party advisory exploit
https://lists.debian.org/debian-lts-announce/2018/04/msg00022.html third party advisory mailing list
https://github.com/benoitc/gunicorn/issues/1227 issue tracking exploit third party advisory
https://www.debian.org/security/2018/dsa-4186 third party advisory vendor advisory
https://usn.ubuntu.com/4022-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-1000164?
CVE-2018-1000164 has been scored as a high severity vulnerability.
How to fix CVE-2018-1000164?
To fix CVE-2018-1000164, 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-2018-1000164 being actively exploited in the wild?
It is possible that CVE-2018-1000164 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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