CVSS: 5.3EPSS: 3%CPEs: 7EXPL: 1CVE-2023-51766 – Debian Security Advisory 5597-1
https://notcve.org/view.php?id=CVE-2023-51766
24 Dec 2023 — 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. Exim hasta 4.97 permite el contrabando SMTP en ciertas configuraciones. • http://www.openwall.com/lists/oss-security/2023/12/24/1 • CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 10.0EPSS: 1%CPEs: 2EXPL: 1CVE-2022-37452 – Ubuntu Security Notice USN-5574-1
https://notcve.org/view.php?id=CVE-2022-37452
07 Aug 2022 — Exim before 4.95 has a heap-based buffer overflow for the alias list in host_name_lookup in host.c when sender_host_name is set. Exim versiones anteriores a 4.95, presenta un desbordamiento de búfer en la región heap de la memoria para la lista de alias en la función host_name_lookup en el archivo host.c cuando sender_host_name está establecido It was discovered that Exim incorrectly handled certain inputs. An attacker could possibly use this issue to cause a crash or execute arbitrary code. • https://github.com/Exim/exim/commit/d4bc023436e4cce7c23c5f8bb5199e178b4cc743 • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 3%CPEs: 3EXPL: 1CVE-2022-37451
https://notcve.org/view.php?id=CVE-2022-37451
06 Aug 2022 — Exim before 4.96 has an invalid free in pam_converse in auths/call_pam.c because store_free is not used after store_malloc. Exim versiones anteriores a 4.96, presenta una liberación no válida en el archivo pam_converse en auths/call_pam.c porque store_free no es usada después de store_malloc • https://cwe.mitre.org/data/definitions/762.html • CWE-763: Release of Invalid Pointer or Reference •
CVSS: 7.5EPSS: 1%CPEs: 1EXPL: 0CVE-2021-38371 – Ubuntu Security Notice USN-6881-1
https://notcve.org/view.php?id=CVE-2021-38371
10 Aug 2021 — The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending. La función STARTTLS en Exim versiones hasta 4.94.2, permite la inyección de respuestas (buffering) durante el envío MTA SMTP It was discovered that Exim did not enforce STARTTLS sync point on client side. An attacker could possibly use this issue to perform response injection during MTA SMTP sending. • https://nostarttls.secvuln.info • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28025 – Debian Security Advisory 4912-1
https://notcve.org/view.php?id=CVE-2020-28025
06 May 2021 — Exim 4 before 4.94.2 allows Out-of-bounds Read because pdkim_finish_bodyhash does not validate the relationship between sig->bodyhash.len and b->bh.len; thus, a crafted DKIM-Signature header might lead to a leak of sensitive information from process memory. Exim 4 versiones anteriores a 4.94.2, permite una lectura fuera de límites porque pdkim_finish_bodyhash no comprueba la relación entre sig-)bodyhash.len y b-)bh.len; por lo tanto, un encabezado DKIM-Signature diseñado podría conllevar una filtración... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28025-BHASH.txt • CWE-125: Out-of-bounds Read •
CVSS: 9.8EPSS: 4%CPEs: 1EXPL: 0CVE-2020-28020 – Gentoo Linux Security Advisory 202105-01
https://notcve.org/view.php?id=CVE-2020-28020
06 May 2021 — Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction. Exim 4 versiones anteriores a 4.92, permite un Desbordamiento de Enteros para un Desbordamiento de Búfer, en el que un atacante remoto no autenticado pueda ejecutar código arbitrario aprovechando el manejo inapropiado de líneas de continuación durante la restricción de la longitud del encabe... • http://www.openwall.com/lists/oss-security/2021/07/25/1 • CWE-190: Integer Overflow or Wraparound •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28009 – Debian Security Advisory 4912-1
https://notcve.org/view.php?id=CVE-2020-28009
06 May 2021 — Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow because get_stdinput allows unbounded reads that are accompanied by unbounded increases in a certain size variable. NOTE: exploitation may be impractical because of the execution time needed to overflow (multiple days). Exim 4 versiones anteriores a 4.94.2 permite el Desbordamiento de Enteros para un Desbordamiento de Búfer porque la función get_stdinput permite lecturas ilimitadas que van acompañadas de aumentos ilimitados en una determinada v... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28009-STDIN.txt • CWE-190: Integer Overflow or Wraparound •
CVSS: 9.8EPSS: 1%CPEs: 1EXPL: 0CVE-2020-28024 – Debian Security Advisory 4912-1
https://notcve.org/view.php?id=CVE-2020-28024
06 May 2021 — Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF. Exim 4 versiones anteriores a 4.94.2, permite una Subscripción de Búfer que puede resultar en que unos atacantes remotos no autenticados ejecuten comandos arbitrarios, porque la función smtp_ungetc solo tenía la intención de retroceder caracteres, pero ac... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28024-UNGET.txt • CWE-787: Out-of-bounds Write •
CVSS: 9.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28022 – Debian Security Advisory 4912-1
https://notcve.org/view.php?id=CVE-2020-28022
06 May 2021 — Exim 4 before 4.94.2 has Improper Restriction of Write Operations within the Bounds of a Memory Buffer. This occurs when processing name=value pairs within MAIL FROM and RCPT TO commands. Exim 4 versiones anteriores a 4.94.2, se presenta una Restricción Inapropiada de Operaciones de Escritura dentro de los límites de un búfer de memoria. Esto ocurre cuando name=value son procesados dentro de los comandos MAIL FROM y RCPT TO The Qualys Research Labs reported several vulnerabilities in Exim, a mail trans... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28022-EXOPT.txt • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28008 – Debian Security Advisory 4912-1
https://notcve.org/view.php?id=CVE-2020-28008
06 May 2021 — Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the spool directory (owned by a non-root user), an attacker can write to a /var/spool/exim4/input spool header file, in which a crafted recipient address can indirectly lead to command execution. Exim 4 versiones anteriores a 4.94.2, permite una ejecución con Privilegios Innecesarios. Debido a que Exim opera como root en el directorio spool (propiedad para un usuario no root), un atacante puede escribir ... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28008-SPDIR.txt • CWE-269: Improper Privilege Management •