CVE-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 •
CVE-2020-27816
https://notcve.org/view.php?id=CVE-2020-27816
The elasticsearch-operator does not validate the namespace where kibana logging resource is created and due to that it is possible to replace the original openshift-logging console link (kibana console) to different one, created based on the new CR for the new kibana resource. This could lead to an arbitrary URL redirection or the openshift-logging console link damage. This flaw affects elasticsearch-operator-container versions before 4.7. Elasticsearch-operator no comprueba el espacio de nombres donde el recurso de registro de kibana es creado y, debido a eso, es posible reemplazar el enlace de la consola de registro de openshift original (consola de kibana) por uno diferente, creado en base al nuevo CR para el nuevo recurso de kibana. Esto podría conllevar al redireccionamiento de una URL arbitraria o daños en el enlace de la consola de registro de openshift. • https://bugzilla.redhat.com/show_bug.cgi?id=1902698 • CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •
CVE-2020-25660 – ceph: CEPHX_V2 replay attack protection lost
https://notcve.org/view.php?id=CVE-2020-25660
A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not verify Ceph clients correctly and is then vulnerable to replay attacks in Nautilus. This flaw allows an attacker with access to the Ceph cluster network to authenticate with the Ceph service via a packet sniffer and perform actions allowed by the Ceph service. This issue is a reintroduction of CVE-2018-1128, affecting the msgr2 protocol. The msgr 2 protocol is used for all communication except older clients that do not support the msgr2 protocol. The msgr1 protocol is not affected. • https://bugzilla.redhat.com/show_bug.cgi?id=1890354 https://ceph.io/community/v15-2-6-octopus-released https://ceph.io/releases/v14-2-14-nautilus-released https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBC4KZ44QUQENTYZPVHORGL4K2KV5V4F https://security.gentoo.org/glsa/202105-39 https://access.redhat.com/security/cve/CVE-2020-25660 • CWE-294: Authentication Bypass by Capture-replay •
CVE-2020-25689 – wildfly-core: memory leak in WildFly host-controller in domain mode while not able to reconnect to domain-controller
https://notcve.org/view.php?id=CVE-2020-25689
A memory leak flaw was found in WildFly in all versions up to 21.0.0.Final, where host-controller tries to reconnect in a loop, generating new connections which are not properly closed while not able to connect to domain-controller. This flaw allows an attacker to cause an Out of memory (OOM) issue, leading to a denial of service. The highest threat from this vulnerability is to system availability. Se encontró una fallo de filtrado de memoria en WildFly en todas las versiones hasta 21.0.0.Final, donde el controlador de host intenta reconectarse en un bucle, generando nuevas conexiones que no son cerradas apropiadamente mientras no es capaz de conectar al controlador de dominio. Este fallo permite a un atacante causar un problema de Falta de Memoria (OOM), conllevando a una denegación de servicio. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-25689 https://security.netapp.com/advisory/ntap-20201123-0006 https://access.redhat.com/security/cve/CVE-2020-25689 https://bugzilla.redhat.com/show_bug.cgi?id=1893070 • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2020-14336 – openshift: restricted SCC allows pods to craft custom network packets
https://notcve.org/view.php?id=CVE-2020-14336
A flaw was found in the Restricted Security Context Constraints (SCC), where it allows pods to craft custom network packets. This flaw allows an attacker to cause a denial of service attack on an OpenShift Container Platform cluster if they can deploy pods. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en las Restricciones de Contexto de Seguridad (SCC), que permite a los pods diseñar paquetes de red personalizados. Este fallo permite a un atacante causar un ataque de Denegación de Servicio en un clúster de OpenShift Container Platform si pueden desplegar pods. • https://bugzilla.redhat.com/show_bug.cgi?id=1858981 https://access.redhat.com/security/cve/CVE-2020-14336 • CWE-770: Allocation of Resources Without Limits or Throttling •