CVSS: 7.2EPSS: 0%CPEs: 11EXPL: 2CVE-2020-27777 – kernel: powerpc: RTAS calls can be used to compromise kernel integrity
https://notcve.org/view.php?id=CVE-2020-27777
A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel. Se encontró un fallo en la manera en que RTAS manejaba los accesos a la memoria en el espacio de usuario para la comunicación del kernel. En un sistema invitado bloqueado (generalmente debido al arranque seguro) que se ejecuta en la parte superior de los hipervisores PowerVM o KVM (plataforma pseries), un usuario root como local podría usar este fallo para aumentar aún más sus privilegios a los de un kernel en ejecución A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel. • https://bugzilla.redhat.com/show_bug.cgi?id=1900844 https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?h=next&id=bd59380c5ba4147dcbaad3e582b55ccfd120b764 https://www.openwall.com/lists/oss-security/2020/10/09/1 https://www.openwall.com/lists/oss-security/2020/11/23/2 https://access.redhat.com/security/cve/CVE-2020-27777 • CWE-862: Missing Authorization •
CVSS: 7.8EPSS: 0%CPEs: 14EXPL: 3CVE-2020-27786 – kernel: use-after-free in kernel midi subsystem
https://notcve.org/view.php?id=CVE-2020-27786
A flaw was found in the Linux kernel’s implementation of MIDI, where an attacker with a local account and the permissions to issue ioctl commands to midi devices could trigger a use-after-free issue. A write to this specific memory while freed and before use causes the flow of execution to change and possibly allow for memory corruption or privilege escalation. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. Se encontró un fallo en la implementación de MIDI en el kernel de Linux, donde un atacante con una cuenta local y los permisos para emitir comandos ioctl a dispositivos midi podría desencadenar un problema de uso después de la liberación. Una escritura en esta memoria específica mientras está liberada y antes de su uso hace que el flujo de ejecución cambie y posiblemente permita la corrupción de memoria o la escalada de privilegios. • https://github.com/kiks7/CVE-2020-27786-Kernel-Exploit https://github.com/elbiazo/CVE-2020-27786 https://github.com/ii4gsp/CVE-2020-27786 http://www.openwall.com/lists/oss-security/2020/12/03/1 https://bugzilla.redhat.com/show_bug.cgi?id=1900933 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c1f6e3c818dd734c30f6a7eeebf232ba2cf3181d https://security.netapp.com/advisory/ntap-20210122-0002 https://access.redhat.com/security/cve/CVE-2020-27786 • CWE-416: Use After Free •
CVSS: 7.5EPSS: 1%CPEs: 21EXPL: 1CVE-2020-8945 – proglottis/gpgme: Use-after-free in GPGME bindings during container image pull
https://notcve.org/view.php?id=CVE-2020-8945
The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification. El contenedor Proglottis Go versiones anteriores a 0.1.1 para la biblioteca GPGME, presenta un uso de la memoria previamente liberada, como es demostrado por el uso para las extracciones de imágenes de contenedores para Docker o CRI-O. Esto conlleva a un bloqueo o posible ejecución de código durante una comprobación de la firma GPG. A use-after-free vulnerability was found in the Go GPGME wrapper library, github.com/proglottis/gpgme. • https://access.redhat.com/errata/RHSA-2020:0679 https://access.redhat.com/errata/RHSA-2020:0689 https://access.redhat.com/errata/RHSA-2020:0697 https://bugzilla.redhat.com/show_bug.cgi?id=1795838 https://github.com/containers/image/commit/4c7a23f82ef09127b0ff28366d1cf31316dd6cc1 https://github.com/proglottis/gpgme/compare/v0.1.0...v0.1.1 https://github.com/proglottis/gpgme/pull/23 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3SOCLOPTSYABTE4CLTSPDIF • CWE-416: Use After Free •
CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0CVE-2011-2717
https://notcve.org/view.php?id=CVE-2011-2717
The DHCPv6 client (dhcp6c) as used in the dhcpv6 project through 2011-07-25 allows remote DHCP servers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message. El cliente DHCPv6 (dhcp6c) como se usado en el proyecto dhcpv6 hasta el 25/07/2011, permite a los servidores DHCP remotos ejecutar comandos arbitrarios por medio de metacaracteres de shell en un nombre de host obtenido desde un mensaje DHCP. • https://access.redhat.com/security/cve/cve-2011-2717 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-2717 https://vigilance.fr/vulnerability/dhcp6c-shell-command-injection-10869 https://www.openwall.com/lists/oss-security/2011/07/26/9 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2011-4967
https://notcve.org/view.php?id=CVE-2011-4967
tog-Pegasus has a package hash collision DoS vulnerability tog-Pegasus presenta una vulnerabilidad de DoS de colisión de paquete hash. • http://bugzilla.openpegasus.org/show_bug.cgi?id=9182 http://www.openwall.com/lists/oss-security/2012/12/14/2 https://access.redhat.com/security/cve/cve-2011-4967 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-4967 https://www.securityfocus.com/bid/56941 • CWE-20: Improper Input Validation •