CVE-2018-1000164

Publication date 18 April 2018

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

From the Ubuntu Security Team

It was discovered that gunicorn improperly handled certain input. An attacker could potentially use this issue execute a cross-site scripting (XSS) attack.

Read the notes from the security team

Status

Package Ubuntu Release Status
gunicorn 22.04 LTS jammy
Not affected
21.10 impish
Not affected
21.04 hirsute
Not affected
20.10 groovy
Not affected
20.04 LTS focal
Not affected
19.10 eoan
Not affected
19.04 disco
Not affected
18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
17.10 artful
Not affected
16.04 LTS xenial
Fixed 19.4.5-1ubuntu1.1
14.04 LTS trusty

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Notes


mdeslaur

there are no reverse-depends on gunicorn in trusty, lowering priority to low

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
gunicorn

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

Other references