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: 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: 1%CPEs: 1EXPL: 0CVE-2020-28026 – Debian Security Advisory 4912-1
https://notcve.org/view.php?id=CVE-2020-28026
06 May 2021 — Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root. Exim 4 versiones anteriores a 4.94.2, presenta una Neutralización Inapropiada de Delimitadores de Línea, relevante en configuraciones no predeterminadas que habilitan la Delivery Status Notifica... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28026-FGETS.txt •
CVSS: 6.3EPSS: 0%CPEs: 1EXPL: 1CVE-2021-27216 – Ubuntu Security Notice USN-4934-1
https://notcve.org/view.php?id=CVE-2021-27216
04 May 2021 — Exim 4 before 4.94.2 has Execution with Unnecessary Privileges. By leveraging a delete_pid_file race condition, a local user can delete arbitrary files as root. This involves the -oP and -oPX options. Exim 4 versiones anteriores a 4.94.2, presenta una Ejecución con Privilegios Innecesarios. Al aprovechar una condición de carrera delete_pid_file, un usuario local puede eliminar archivos arbitrarios como root. • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28007-LFDIR.txt • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28007 – Ubuntu Security Notice USN-4934-1
https://notcve.org/view.php?id=CVE-2020-28007
04 May 2021 — Exim 4 before 4.94.2 allows Execution with Unnecessary Privileges. Because Exim operates as root in the log directory (owned by a non-root user), a symlink or hard link attack allows overwriting critical root-owned files anywhere on the filesystem. Exim 4 versiones anteriores a 4.94.2, permite una Ejecución con Privilegios Innecesarios. Debido a que Exim opera como root en el directorio de registro (propiedad para un usuario no root), un ataque de enlace simbólico o físico permite sobrescribir archivos... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28007-LFDIR.txt • CWE-59: Improper Link Resolution Before File Access ('Link Following') •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28011 – Ubuntu Security Notice USN-4934-1
https://notcve.org/view.php?id=CVE-2020-28011
04 May 2021 — Exim 4 before 4.94.2 allows Heap-based Buffer Overflow in queue_run via two sender options: -R and -S. This may cause privilege escalation from exim to root. Exim 4 versiones anteriores a 4.94.2 permite un Desbordamiento de Búfer en la Región Heap de la Memoria en la función queue_run por medio de dos opciones de remitente: -R y -S. Esto puede causar una escalada de privilegios de exim a root It was discovered that Exim contained multiple security issues. An attacker could use these issues to cause a d... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28011-SPRSS.txt • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28015 – Ubuntu Security Notice USN-4934-1
https://notcve.org/view.php?id=CVE-2020-28015
04 May 2021 — Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. Local users can alter the behavior of root processes because a recipient address can have a newline character. Exim 4 versiones anteriores a 4.94.2, presenta Neutralización Inapropiada de Delimitadores de Línea. Los usuarios locales pueden alterar el comportamiento de los procesos root porque la dirección de un destinatario pueda tener un carácter newline It was discovered that Exim contained multiple security issues. An attacker could use... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28015-NLEND.txt •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2020-28019 – Ubuntu Security Notice USN-4934-1
https://notcve.org/view.php?id=CVE-2020-28019
04 May 2021 — Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA. Exim 4 versiones anteriores a 4.94.2, presenta una Inicialización Inapropiada que puede conllevar a un consumo de la pila basado en recursividad u otras consecuencias. Esto ocurre porque el uso de determinadas funciones getc es manejado inapropiadamente cuando un cliente usa BDA... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28019-BDATA.txt • CWE-665: Improper Initialization •
CVSS: 7.5EPSS: 1%CPEs: 1EXPL: 0CVE-2020-28023 – Ubuntu Security Notice USN-4934-1
https://notcve.org/view.php?id=CVE-2020-28023
04 May 2021 — Exim 4 before 4.94.2 allows Out-of-bounds Read. smtp_setup_msg may disclose sensitive information from process memory to an unauthenticated SMTP client. Exim 4 versiones anteriores a 4.94.2, permite una lectura fuera de límites. La función smtp_setup_msg puede divulgar información confidencial de la memoria del proceso a un cliente SMTP no autenticado It was discovered that Exim contained multiple security issues. An attacker could use these issues to cause a denial of service, execute arbitrary code r... • https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28023-SCHAD.txt • CWE-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 4%CPEs: 11EXPL: 1CVE-2020-12783 – Debian Security Advisory 4687-1
https://notcve.org/view.php?id=CVE-2020-12783
11 May 2020 — Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c. Exim versiones hasta 4.93, presenta una lectura fuera de límites en el autenticador SPA lo que podría resultar en una omisión de la autenticación SPA/NTLM en los archivos auths/spa.c y auths/auth-spa.c. It was discovered that exim4, a mail transport agent, suffers from a authentication bypass vulnerability in the spa authentication driver. The spa auth... • http://www.openwall.com/lists/oss-security/2021/05/04/7 • CWE-125: Out-of-bounds Read •