CVE-2023-51765

Katalog CVE

CVSS 5.3 · Medium EPSS 1,1%

Kerentanan Insufficient Verification of Data Authenticity pada sendmail, freebsd +1 lainnya. Skor CVSS 3.1 5.3 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

24 Desember 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.3 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-345: Insufficient Verification of Data Authenticity

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 64,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.suse.com/show_bug.cgi?id=1218351 issue tracking · patch · advisory pihak ketiga
• https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac880049... patch
• http://www.openwall.com/lists/oss-security/2023/12/24/1 mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2023/12/25/1 mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2023/12/26/5 mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2023/12/29/5 mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2023/12/30/1 mailing list · advisory pihak ketiga
• http://www.openwall.com/lists/oss-security/2023/12/30/3 mailing list · advisory pihak ketiga
• https://access.redhat.com/security/cve/CVE-2023-51765 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2255869 issue tracking · advisory pihak ketiga
• https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ deskripsi teknis · advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2023/12/21/7 mailing list · advisory pihak ketiga
• https://www.openwall.com/lists/oss-security/2023/12/22/7 mailing list · advisory pihak ketiga
• https://www.youtube.com/watch?v=V8KPV96g1To exploit
• https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html deskripsi teknis
• https://lists.debian.org/debian-lts-announce/2024/06/msg00004.html
• https://lwn.net/Articles/956533/