CVE-2023-51765
Published
CVSS v3
5.3
MEDIUM
CVSS v2
N/A
Affected
1
PROJECT
Description
sendmail through 8.17.2 allows SMTP smuggling in certain 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 sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features.
The FreeBSD src tree publish-only repository. Experimenting with 'simple' pull requests....
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