CVSS: 5.3EPSS: 0%CPEs: 4EXPL: 1CVE-2023-51765
https://notcve.org/view.php?id=CVE-2023-51765
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. sendmail hasta al menos 8.14.7 permite el contrabando SMTP en ciertas configuraciones. • 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/2023/12/26/5 http://www.openwall.com/lists/oss-security/2023/12/29/5 http://www.openwall.com/lists/oss-security/2023/12/30/1 http://www.openwall.com/lists/oss-security/2023/12/30/3 https://access.redhat.com/security/cve/CVE-2023-51765 https://bugzilla.redhat.com/show_bug.cgi?id=2255869 ht • CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 7.4EPSS: 0%CPEs: 7EXPL: 0CVE-2021-3618
https://notcve.org/view.php?id=CVE-2021-3618
ALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer. ALPACA es un ataque de confusión de contenido de protocolo de capa de aplicación, que explota servidores TLS que implementan diferentes protocolos pero que usan certificados compatibles, como certificados multidominio o comodín. Un atacante de tipo MiTM que tenga acceso al tráfico de la víctima en la capa TCP/IP puede redirigir el tráfico de un subdominio a otro, resultando en a una sesión TLS válida. • https://alpaca-attack.com https://bugzilla.redhat.com/show_bug.cgi?id=1975623 https://lists.debian.org/debian-lts-announce/2022/11/msg00031.html • CWE-295: Improper Certificate Validation •
CVSS: 1.9EPSS: 0%CPEs: 56EXPL: 0CVE-2014-3956
https://notcve.org/view.php?id=CVE-2014-3956
The sm_close_on_exec function in conf.c in sendmail before 8.14.9 has arguments in the wrong order, and consequently skips setting expected FD_CLOEXEC flags, which allows local users to access unintended high-numbered file descriptors via a custom mail-delivery program. La función sm_close_on_exec en conf.c en sendmail anterior a 8.14.9 tiene argumentos en el orden erróneo, y como consecuencia evade configurar etiquetas FD_CLOEXEC esperadas, lo que permite a usuarios locales acceder a descriptores de archivos de número alto no intencionados a través de un programa de entrega de correo personalizado. • ftp://ftp.sendmail.org/pub/sendmail/RELEASE_NOTES http://advisories.mageia.org/MGASA-2014-0270.html http://lists.fedoraproject.org/pipermail/package-announce/2014-June/134349.html http://lists.opensuse.org/opensuse-updates/2014-06/msg00032.html http://lists.opensuse.org/opensuse-updates/2014-06/msg00033.html http://packetstormsecurity.com/files/126975/Slackware-Security-Advisory-sendmail-Updates.html http://secunia.com/advisories/57455 http://secunia.com/advisories/58628 http://security.gentoo.org&#x • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 7.5EPSS: 0%CPEs: 62EXPL: 0CVE-2009-4565 – sendmail: incorrect verification of SSL certificate with NUL in name
https://notcve.org/view.php?id=CVE-2009-4565
sendmail before 8.14.4 does not properly handle a '\0' character in a Common Name (CN) field of an X.509 certificate, which (1) allows man-in-the-middle attackers to spoof arbitrary SSL-based SMTP servers via a crafted server certificate issued by a legitimate Certification Authority, and (2) allows remote attackers to bypass intended access restrictions via a crafted client certificate issued by a legitimate Certification Authority, a related issue to CVE-2009-2408. sendmail anterior a v8.14.4 no maneja adecuadamente un carácter '\0' en un fichero Common Name (CN) de un certificado X.509; esto permite (1) a atacantes del tipo hombre-en-el-medio suplantar a su elección servidores SMTP basados en SSL utilizando un certificado de servidor manipulado expedido por una Autoridad Certificadora legítima y (2) a atacantes remotos evitar las restricciones de acceso pretendidas a través de un certificado cliente expedido por una Autoridad Certificadora legítima. Vulnerabilidad relacionada con CVE-2009-2408. • http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html http://marc.info/?l=bugtraq&m=126953289726317&w=2 http://secunia.com/advisories/37998 http://secunia.com/advisories/38314 http://secunia.com/advisories/38915 http://secunia.com/advisories/39088 http://secunia.com/advisories/40109 http://secunia.com/advisories/43366 http://security.gentoo.org/glsa/glsa-201206-30.xml http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021797.1-1 http://www • CWE-310: Cryptographic Issues •
CVSS: 7.5EPSS: 27%CPEs: 1EXPL: 0CVE-2006-4434
https://notcve.org/view.php?id=CVE-2006-4434
Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads directly to exit(3), i.e., the process would terminate anyway, no mail delivery or receiption is affected." Vulnerabilidad Utilizar-tras-liberar en Sendmail versiones anteriores a 8.13.8, permite a atacantes remotos provocar una denegación de servicio (crash) mediante una "header line" larga, que provoca que una variable liberada anteriormente sea referenciada. NOTa: El desarrollador original ha impugnado la severidad de esta vulnerabilidad diciendo "La única denegación de servicio posible aquí, es llenar el disco con volcados de memoria si el Sistema Operativo genera diferentes volcados de memoria (que es improbable)... el error reside en el código de apagado (finis()) que conduce directamente a exit(3), en este caso, el proceso terminaría de todas formas, no afecta a la distribución ni recepción de correo". • http://secunia.com/advisories/21637 http://secunia.com/advisories/21641 http://secunia.com/advisories/21696 http://secunia.com/advisories/21700 http://secunia.com/advisories/21749 http://secunia.com/advisories/22369 http://securitytracker.com/id?1016753 http://sunsolve.sun.com/search/document.do?assetkey=1-26-102664-1 http://www.attrition.org/pipermail/vim/2006-August/000999.html http://www.debian.org/security/2006/dsa-1164 http://www.mandriva.com/security/advisories?name=M • CWE-416: Use After Free •