CVSS: 6.4EPSS: 0%CPEs: 32EXPL: 0CVE-2020-15705 – GRUB2: avoid loading unsigned kernels when GRUB is booted directly under secureboot without shim
https://notcve.org/view.php?id=CVE-2020-15705
GRUB2 fails to validate kernel signature when booted directly without shim, allowing secure boot to be bypassed. This only affects systems where the kernel signing certificate has been imported directly into the secure boot database and the GRUB image is booted directly without the use of shim. This issue affects GRUB2 version 2.04 and prior versions. GRUB2 presenta un fallo al comprobar la firma del kernel cuando se inicia directamente sin cuña, permitiendo que el arranque seguro sea omitido. Esto solo afecta a los sistemas en los que el certificado de firma del kernel ha sido importado directamente a la base de datos de arranque seguro y la imagen de GRUB es iniciada directamente sin el uso de cuña. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00067.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00069.html http://ubuntu.com/security/notices/USN-4432-1 http://www.openwall.com/lists/oss-security/2020/07/29/3 http://www.openwall.com/lists/oss-security/2021/03/02/3 http://www.openwall.com/lists/oss-security/2021/09/17/2 http://www.openwall.com/lists/oss-security/2021/09/17/4 http://www.openwall.com/lists/oss-security&#x • CWE-347: Improper Verification of Cryptographic Signature CWE-440: Expected Behavior Violation •
CVSS: 6.4EPSS: 0%CPEs: 36EXPL: 0CVE-2020-15706 – GRUB2 contains a race condition leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing.
https://notcve.org/view.php?id=CVE-2020-15706
GRUB2 contains a race condition in grub_script_function_create() leading to a use-after-free vulnerability which can be triggered by redefining a function whilst the same function is already executing, leading to arbitrary code execution and secure boot restriction bypass. This issue affects GRUB2 version 2.04 and prior versions. GRUB2 contiene una condición de carrera en la función grub_script_function_create() que conlleva a una vulnerabilidad de uso de la memoria previamente liberada la cual puede ser desencadenada al redefinir una función mientras la misma función ya se está ejecutando, conllevando a una ejecución de código arbitrario y a una omisión de restricción de arranque seguro. Este problema afecta a GRUB2 versiones 2.04 y versiones anteriores • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html http://ubuntu.com/security/notices/USN-4432-1 http://www.openwall.com/lists/oss-security/2020/07/29/3 https://access.redhat.com/security/vulnerabilities/grub2bootloader https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011 https://security.gentoo.org/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •
CVSS: 6.4EPSS: 0%CPEs: 33EXPL: 1CVE-2020-15707 – GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.
https://notcve.org/view.php?id=CVE-2020-15707
Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions. Se detectaron desbordamientos de enteros en las funciones grub_cmd_initrd y grub_initrd_init en el componente efilinux de GRUB2, como se incluye en Debian, Red Hat y Ubuntu (la funcionalidad no está incluida aguas arriba de GRUB2), conllevando a un desbordamiento del búfer en la región heap de la memoria. • http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html http://ubuntu.com/security/notices/USN-4432-1 http://www.openwall.com/lists/oss-security/2020/07/29/3 https://access.redhat.com/security/vulnerabilities/grub2bootloader https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011 https://security.gentoo.org/ • CWE-190: Integer Overflow or Wraparound CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.8EPSS: 0%CPEs: 20EXPL: 0CVE-2018-10875 – ansible: ansible.cfg is being read from current working directory allowing possible code execution
https://notcve.org/view.php?id=CVE-2018-10875
A flaw was found in ansible. ansible.cfg is read from the current working directory which can be altered to make it point to a plugin or a module path under the control of an attacker, thus allowing the attacker to execute arbitrary code. Se ha encontrado un error en ansible. ansible.cfg se lee desde el directorio de trabajo actual, que puede alterarse para hacer que señale a un plugin o una ruta de módulo bajo el control de un atacante, permitiendo que el atacante ejecute código arbitrario. It was found that ansible.cfg is being read from the current working directory, which can be made to point to plugin or module paths that are under control of the attacker. This could allow an attacker to execute arbitrary code. • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00021.html http://www.securitytracker.com/id/1041396 https://access.redhat.com/errata/RHBA-2018:3788 https://access.redhat.com/errata/RHSA-2018:2150 https://access.redhat.com/errata/RHSA-2018:2151 https://access.redhat.com/errata/RHSA-2018:2152 https://access.redhat.com/errata/RHSA-2018:2166 https://access.redhat.com/errata/RHSA-2018:2321 https://access.redhat.com/errata/RHSA-2018:2585 https://access.redhat.co • CWE-426: Untrusted Search Path •
CVSS: 5.0EPSS: 1%CPEs: 5EXPL: 3CVE-2014-9116
https://notcve.org/view.php?id=CVE-2014-9116
The write_one_header function in mutt 1.5.23 does not properly handle newline characters at the beginning of a header, which allows remote attackers to cause a denial of service (crash) via a header with an empty body, which triggers a heap-based buffer overflow in the mutt_substrdup function. La función write_one_header en mutt 1.5.23 no maneja correctamente los caracteres de línea nueva al inicio de una cabecera, lo que permite a atacantes remotos causar una denegación de servicio (caída) a través de una cabecera con el cuerpo vacío, lo que provoca un desbordamiento de buffer basado en memoria dinámica en la función mutt_substrdup. • http://advisories.mageia.org/MGASA-2014-0509.html http://dev.mutt.org/trac/ticket/3716 http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00002.html http://www.debian.org/security/2014/dsa-3083 http://www.mandriva.com/security/advisories?name=MDVSA-2014:245 http://www.mandriva.com/security/advisories?name=MDVSA-2015:078 http://www.openwall.com/lists/oss-security/2014/11/27/5 http://www.openwall.com/lists/oss-security/2014/11/27/9 http://www.securityfocus& • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •