CVE ID:	CVE-2023-51766
Description:	Exim before 4.97.1 allows SMTP smuggling in certain PIPELINING/CHUNKING configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because Exim supports . but some other popular e-mail servers do not.
Test IDs:	1.3.6.1.4.1.25623.1.0.885571   1.3.6.1.4.1.25623.1.0.885573   1.3.6.1.4.1.25623.1.1.1.1.2024.5597   1.3.6.1.4.1.25623.1.0.114254   1.3.6.1.4.1.25623.1.1.1.2.2024.3708   1.3.6.1.4.1.25623.1.1.12.2024.6611.1
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2023-51766 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QPDWHJPABVJCXDSNELSSVTIVAJU2MDUQ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ORN7OKEQPPBKUHYRQ6LR5PSNBQVDHAWB/ https://bugs.exim.org/show_bug.cgi?id=3063 https://bugzilla.redhat.com/show_bug.cgi?id=2255852 https://exim.org/static/doc/security/CVE-2023-51766.txt https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html https://git.exim.org/exim.git/commit/5bb786d5ad568a88d50d15452aacc8404047e5ca https://git.exim.org/exim.git/commit/cf1376206284f2a4f11e32d931d4aade34c206c5 https://lwn.net/Articles/956533/ https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ https://www.openwall.com/lists/oss-security/2023/12/23/2 https://www.youtube.com/watch?v=V8KPV96g1To https://lists.debian.org/debian-lts-announce/2024/01/msg00002.html http://www.openwall.com/lists/oss-security/2023/12/24/1 http://www.openwall.com/lists/oss-security/2023/12/25/1 http://www.openwall.com/lists/oss-security/2023/12/29/2 http://www.openwall.com/lists/oss-security/2024/01/01/1 http://www.openwall.com/lists/oss-security/2024/01/01/2 http://www.openwall.com/lists/oss-security/2024/01/01/3