Your message dated Thu, 16 Mar 2023 20:50:50 +0100
with message-id <[email protected]>
and subject line Re: Bug#992172: exim4: CVE-2021-38371
has caused the Debian Bug report #992172,
regarding exim4: CVE-2021-38371
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--- Begin Message ---
Source: exim4
Version: 4.94.2-7
Severity: important
Tags: security upstream
X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi,
The following vulnerability was published for exim4, this is to start
tracking the issue downstream for us. Note that at time of writing [2]
gives still a 404.
CVE-2021-38371[0]:
| The STARTTLS feature in Exim through 4.94.2 allows response injection
| (buffering) during MTA SMTP sending.
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-2021-38371
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38371
[1] https://nostarttls.secvuln.info
[2] https://www.exim.org/static/doc/security/CVE-2021-38371.txt
Please adjust the affected versions in the BTS as needed.
Regards,
Salvatore
--- End Message ---
--- Begin Message ---
Source: exim4
Source-Version: 4.95~RC0-1
On Thu, Mar 16, 2023 at 06:21:47PM +0100, Andreas Metzler wrote:
> On 2023-03-15 Moritz Mühlenhoff <[email protected]> wrote:
> > Am Sun, Aug 15, 2021 at 07:21:40AM +0200 schrieb Andreas Metzler:
> > > On 2021-08-14 Salvatore Bonaccorso <[email protected]> wrote:
> [...]
> > > > CVE-2021-38371[0]:
> > > > | The STARTTLS feature in Exim through 4.94.2 allows response injection
> > > > | (buffering) during MTA SMTP sending.
> > > [...]
> > >
> > > IIRC that is mitigated in experimental (4.95 rc) by ALPN and unkown
> > > command related changes, I will not be able to check in detail for a
> > > week or so, though.
>
> > Do you know if this is fixed in 4.96/bookworm?
>
> Yes it is. 4.95 and later are fine.
> https://lists.exim.org/lurker/message/20230315.200011.3128be8e.en.html
Thanks, so the mentioned commit was in exim-4.95-RC0 upstream tag, and
so fixed in Debian first with the eximerimental upload 4.95~RC0-1.
Commited locally for the security-tracker and closing the bug (but
various Debian services are down right now).
Regards,
Salvatore
--- End Message ---
