Fedora EPEL 6 update for python-gunicorn

1) HTTP response splitting

EUVDB-ID: #VU12292

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1000164

CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Exploit availability: No

Description

The vulnerability allows a remote attacker to write arbitrary files on the target system.

The weakness exists in "process_headers" function in "gunicorn/http/wsgi.py" due to improper neutralization of CRLF Sequences in HTTP headers. A remote attacker can cause the server to return arbitrary HTTP headers and write arbitrary files on the target system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 6.0

python-gunicorn: before 18.0-2.el6

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:6.0:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:python-gunicorn:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2018-158680d651

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.