Redhat » Openshift : Security Vulnerabilities, CVEs, CVSS score >= 7

A flaw was found in Buildah (and subsequently Podman Build) which allows containers to mount arbitrary locations on the host filesystem into build containers. A malicious Containerfile can use a dummy image with a symbolic link to the root filesystem as a mount source and cause the mount operation to mount the host root filesystem inside the RUN step. The commands inside the RUN step will then have read-write access to the host filesystem, allowing for full container escape at build time.

A flaw was found in the decompression function of registry-support. This issue can be triggered if an unauthenticated remote attacker tricks a user into parsing a devfile which uses the `parent` or `plugin` keywords. This could download a malicious archive and cause the cleanup process to overwrite or delete files outside of the archive, which should not be allowed.

A memory leak flaw was found in Golang in the RSA encrypting/decrypting code, which might lead to a resource exhaustion vulnerability using attacker-controlled inputs​. The memory leak happens in github.com/golang-fips/openssl/openssl/rsa.go#L113. The objects leaked are pkey​ and ctx​. That function uses named return parameters to free pkey​ and ctx​ if there is an error initializing the context or setting the different properties. All return statements related to error cases follow the "return nil, nil, fail(...)" pattern, meaning that pkey​ and ctx​ will be nil inside the deferred function that should free them.

The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

A flaw was found in Open vSwitch where multiple versions are vulnerable to crafted Geneve packets, which may result in a denial of service and invalid memory accesses. Triggering this issue requires that hardware offloading via the netlink path is enabled.

A flaw was found in Openshift. A pod with a DNSPolicy of "ClusterFirst" may incorrectly resolve the hostname based on a service provided. This flaw allows an attacker to supply an incorrect name with the DNS search policy, affecting confidentiality and availability.

Openshift 4.9 does not use HTTP Strict Transport Security (HSTS) which may allow man-in-the-middle (MITM) attacks.

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.

The release of OpenShift 4.9.6 included four CVE fixes for the haproxy package, however the patch for CVE-2021-39242 was missing. This issue only affects Red Hat OpenShift 4.9.

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.

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.

A vulnerability was found in all openshift/mediawiki 4.x.x versions prior to 4.3.0, where an insecure modification vulnerability in the /etc/passwd file was found in the openshift/mediawiki. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

A vulnerability was found in all openshift/postgresql-apb 4.x.x versions prior to 4.3.0, where an insecure modification vulnerability in the /etc/passwd file was found in the container openshift/postgresql-apb. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

An insecure modification vulnerability in the /etc/passwd file was found in the openshift/ocp-release-operator-sdk. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges. This CVE is specific to the openshift/ansible-operator-container as shipped in Openshift 4.

An insecure modification vulnerability in the /etc/passwd file was found in the container openshift/jenkins. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges. This CVE is specific to the openshift/jenkins-slave-base-rhel7-containera as shipped in Openshift 4 and 3.11.

An insecure modification vulnerability in the /etc/passwd file was found in the openshift/ansible-service-broker as shipped in Red Hat Openshift 4 and 3.11. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

An insecure modification vulnerability in the /etc/passwd file was found in the container operator-framework/operator-metering as shipped in Red Hat Openshift 4. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

An insecure modification vulnerability in the /etc/passwd file was found in the container openshift/apb-base, affecting versions before the following 4.3.5, 4.2.21, 4.1.37, and 3.11.188-4. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

An insecure modification vulnerability in the /etc/passwd file was found in the container openshift/mariadb-apb, affecting versions before the following 4.3.5, 4.2.21, 4.1.37, and 3.11.188-4 . An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

A vulnerability was found in all openshift/mediawiki-apb 4.x.x versions prior to 4.3.0, where an insecure modification vulnerability in the /etc/passwd file was found in the container openshift/mediawiki-apb. An attacker with access to the container could use this flaw to modify /etc/passwd and escalate their privileges.

runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.

A flaw was discovered in the HPACK decoder of HAProxy, before 1.8.14, that is used for HTTP/2. An out-of-bounds read access in hpack_valid_idx() resulted in a remote crash and denial of service.

In atomic-openshift before version 3.10.9 a malicious network-policy configuration can cause Openshift Routing to crash when using ovs-networkpolicy plugin. An attacker can use this flaw to cause a Denial of Service (DoS) attack on an Openshift 3.9, or 3.7 Cluster.

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.

A flaw was found in source-to-image function as shipped with Openshift Enterprise 3.x. An improper path validation of tar files in ExtractTarStreamFromTarReader in tar/tar.go leads to privilege escalation.