mitmproxy: CVE-2021-39214

Debian Bug report logs - #994570
mitmproxy: CVE-2021-39214

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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: mitmproxy: CVE-2021-39214

Date: Fri, 17 Sep 2021 21:59:35 +0200

Source: mitmproxy
Version: 6.0.2-1
Severity: important
Tags: security upstream
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>

Hi,

The following vulnerability was published for mitmproxy.

CVE-2021-39214[0]:
| mitmproxy is an interactive, SSL/TLS-capable intercepting proxy. In
| mitmproxy 7.0.2 and below, a malicious client or server is able to
| perform HTTP request smuggling attacks through mitmproxy. This means
| that a malicious client/server could smuggle a request/response
| through mitmproxy as part of another request/response's HTTP message
| body. While a smuggled request is still captured as part of another
| request's body, it does not appear in the request list and does not go
| through the usual mitmproxy event hooks, where users may have
| implemented custom access control checks or input sanitization. Unless
| one uses mitmproxy to protect an HTTP/1 service, no action is
| required. The vulnerability has been fixed in mitmproxy 7.0.3 and
| above.


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-2021-39214
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39214
[1] https://github.com/mitmproxy/mitmproxy/security/advisories/GHSA-22gh-3r9q-xf38

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore

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