CVE-2023-51765
Vulnerability from cvelistv5
Published
2023-12-24 00:00
Modified
2024-08-02 22:48
Severity ?
Summary
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.
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/12/24/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/12/25/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/12/26/5Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/12/29/5Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/12/30/1Mailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2023/12/30/3Mailing List, Third Party Advisory
cve@mitre.orghttps://access.redhat.com/security/cve/CVE-2023-51765Third Party Advisory
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=2255869Issue Tracking, Third Party Advisory
cve@mitre.orghttps://bugzilla.suse.com/show_bug.cgi?id=1218351Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.htmlTechnical Description
cve@mitre.orghttps://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935ccPatch
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2024/06/msg00004.html
cve@mitre.orghttps://lwn.net/Articles/956533/
cve@mitre.orghttps://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/Technical Description, Third Party Advisory
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2023/12/21/7Mailing List, Third Party Advisory
cve@mitre.orghttps://www.openwall.com/lists/oss-security/2023/12/22/7Mailing List, Third Party Advisory
cve@mitre.orghttps://www.youtube.com/watch?v=V8KPV96g1ToExploit
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/12/24/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/12/25/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/12/26/5Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/12/29/5Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/12/30/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2023/12/30/3Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2023-51765Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2255869Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.suse.com/show_bug.cgi?id=1218351Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.htmlTechnical Description
af854a3a-2127-422b-91ae-364da2661108https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935ccPatch
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/06/msg00004.html
af854a3a-2127-422b-91ae-364da2661108https://lwn.net/Articles/956533/
af854a3a-2127-422b-91ae-364da2661108https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/Technical Description, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2023/12/21/7Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2023/12/22/7Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.youtube.com/watch?v=V8KPV96g1ToExploit
Impacted products
Vendor Product Version
Show details on NVD website

To clipboard 

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}


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  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.