twisted: CVE-2022-39348: NameVirtualHost Host header injection

Debian Bug report logs - #1023359
twisted: CVE-2022-39348: NameVirtualHost Host header injection

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Salvatore Bonaccorso <carnil@debian.org>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: twisted: CVE-2022-39348: NameVirtualHost Host header injection

Date: Wed, 02 Nov 2022 21:33:29 +0100

Source: twisted
Version: 22.4.0-3
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Control: found -1 20.3.0-7+deb11u1
Control: found -1 20.3.0-7

Hi,

The following vulnerability was published for twisted.

CVE-2022-39348[0]:
| Twisted is an event-based framework for internet applications. Started
| with version 0.9.4, when the host header does not match a configured
| host `twisted.web.vhost.NameVirtualHost` will return a `NoResource`
| resource which renders the Host header unescaped into the 404 response
| allowing HTML and script injection. In practice this should be very
| difficult to exploit as being able to modify the Host header of a
| normal HTTP request implies that one is already in a privileged
| position. This issue was fixed in version 22.10.0rc1. There are no
| known workarounds.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2022-39348
    https://www.cve.org/CVERecord?id=CVE-2022-39348
[1] https://github.com/twisted/twisted/security/advisories/GHSA-vg46-2rrj-3647
[2] https://github.com/twisted/twisted/commit/f2f5e81c03f14e253e85fe457e646130780db40b 

Regards,
Salvatore

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