CVSS: 7.5EPSS: 0%CPEs: 39EXPL: 0CVE-2021-3697 – grub2: Crafted JPEG image can lead to buffer underflow write in the heap
https://notcve.org/view.php?id=CVE-2021-3697
A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12. Una imagen JPEG diseñada puede conllevar que el lector de JPEG desborde su puntero de datos, permitiendo que los datos controlados por el usuario sean escritos en la pila. • https://bugzilla.redhat.com/show_bug.cgi?id=1991687 https://security.gentoo.org/glsa/202209-12 https://security.netapp.com/advisory/ntap-20220930-0001 https://access.redhat.com/security/cve/CVE-2021-3697 • CWE-787: Out-of-bounds Write •
CVSS: 7.5EPSS: 0%CPEs: 41EXPL: 0CVE-2021-3695 – grub2: Crafted PNG grayscale images may lead to out-of-bounds write in heap
https://notcve.org/view.php?id=CVE-2021-3695
A crafted 16-bit grayscale PNG image may lead to a out-of-bounds write in the heap area. An attacker may take advantage of that to cause heap data corruption or eventually arbitrary code execution and circumvent secure boot protections. This issue has a high complexity to be exploited as an attacker needs to perform some triage over the heap layout to achieve signifcant results, also the values written into the memory are repeated three times in a row making difficult to produce valid payloads. This flaw affects grub2 versions prior grub-2.12. Una imagen PNG en escala de grises de 16 bits diseñada puede conllevar a una escritura fuera de límites en el área de la pila. • https://bugzilla.redhat.com/show_bug.cgi?id=1991685 https://security.gentoo.org/glsa/202209-12 https://security.netapp.com/advisory/ntap-20220930-0001 https://access.redhat.com/security/cve/CVE-2021-3695 • CWE-787: Out-of-bounds Write •
CVSS: 8.1EPSS: 0%CPEs: 3EXPL: 0CVE-2021-4125 – kube-reporting/hive: Incomplete fix for log4j CVE-2021-44228 and CVE-2021-45046
https://notcve.org/view.php?id=CVE-2021-4125
It was found that the original fix for log4j CVE-2021-44228 and CVE-2021-45046 in the OpenShift metering hive containers was incomplete, as not all JndiLookup.class files were removed. This CVE only applies to the OpenShift Metering hive container images, shipped in OpenShift 4.8, 4.7 and 4.6. Se ha detectado que la corrección original para log4j CVE-2021-44228 y CVE-2021-45046 en los contenedores hive de medición de OpenShift estaba incompleta, ya que no fueron eliminados todos los archivos JndiLookup.class. Esta CVE sólo es aplicada a imágenes de contenedores hive de OpenShift Metering, enviadas en OpenShift versiones 4.8, 4.7 y 4.6. It was found that the original fix for log4j CVE-2021-44228 and CVE-2021-45046 in the OpenShift metering hive containers was incomplete, as not all JndiLookup.class files were removed. • https://access.redhat.com/security/cve/CVE-2021-4125 https://access.redhat.com/security/cve/CVE-2021-44228 https://access.redhat.com/security/cve/CVE-2021-45046 https://bugzilla.redhat.com/show_bug.cgi?id=2033121 https://github.com/kube-reporting/hive/pull/71 https://github.com/kube-reporting/hive/pull/72 https://github.com/kube-reporting/hive/pull/73 https://access.redhat.com/security/vulnerabilities/RHSB-2021-009 • CWE-20: Improper Input Validation CWE-502: Deserialization of Untrusted Data •
CVSS: 4.6EPSS: 0%CPEs: 1EXPL: 1CVE-2021-3636 – openshift: Injected service-ca.crt incorrectly contains additional internal CAs
https://notcve.org/view.php?id=CVE-2021-3636
It was found in OpenShift, before version 4.8, that the generated certificate for the in-cluster Service CA, incorrectly included additional certificates. The Service CA is automatically mounted into all pods, allowing them to safely connect to trusted in-cluster services that present certificates signed by the trusted Service CA. The incorrect inclusion of additional CAs in this certificate would allow an attacker that compromises any of the additional CAs to masquerade as a trusted in-cluster service. Se encontró en OpenShift, anterior a versión 4.8, que el certificado generado para la CA de servicio en el clúster, incluía incorrectamente certificados adicionales. La CA de servicio se monta automáticamente en todos los pods, permitiéndoles conectarse de forma segura a los servicios confiables del clúster que presentan certificados firmados por la CA de servicio confiable. • https://bugzilla.redhat.com/show_bug.cgi?id=1978621 https://access.redhat.com/security/cve/CVE-2021-3636 • CWE-287: Improper Authentication CWE-295: Improper Certificate Validation •
CVSS: 7.0EPSS: 0%CPEs: 2EXPL: 0CVE-2020-35514
https://notcve.org/view.php?id=CVE-2020-35514
An insecure modification flaw in the /etc/kubernetes/kubeconfig file was found in OpenShift. This flaw allows an attacker with access to a running container which mounts /etc/kubernetes or has local access to the node, to copy this kubeconfig file and attempt to add their own node to the OpenShift cluster. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. This flaw affects versions before openshift4/ose-machine-config-operator v4.7.0-202105111858.p0. Se ha detectado un fallo de modificación no segura en el archivo /etc/kubernetes/kubeconfig en OpenShift. • https://bugzilla.redhat.com/show_bug.cgi?id=1914714 • CWE-266: Incorrect Privilege Assignment •