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CVE-2023-51766

CVE-2023-51766

EPSS 1.1%
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 <LF>.<CR><LF> but some other popular e-mail servers do not.
Produtos afetados
n/a · n/a

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Referências
https://bugs.exim.org/show_bug.cgi?id=3063https://bugzilla.redhat.com/show_bug.cgi?id=2255852https://exim.org/static/doc/security/CVE-2023-51766.txthttps://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.htmlhttps://git.exim.org/exim.git/commit/5bb786d5ad568a88d50d15452aacc8404047e5cahttps://git.exim.org/exim.git/commit/cf1376206284f2a4f11e32d931d4aade34c206c5https://github.com/Exim/exim/blob/master/doc/doc-txt/cve-2023-51766https://lists.debian.org/debian-lts-announce/2024/01/msg00002.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ORN7OKEQPPBKUHYRQ6LR5PSNBQVDHAWB/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QPDWHJPABVJCXDSNELSSVTIVAJU2MDUQ/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ORN7OKEQPPBKUHYRQ6LR5PSNBQVDHAWB/https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QPDWHJPABVJCXDSNELSSVTIVAJU2MDUQ/