Vulnerabilities (CVE)

Filtered by vendor Redhat Subscribe
Total 5741 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-3679 3 Debian, Linux, Redhat 3 Debian Linux, Linux Kernel, Enterprise Linux 2024-11-21 2.1 LOW 5.5 MEDIUM
A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.
CVE-2021-3677 3 Fedoraproject, Postgresql, Redhat 7 Fedora, Postgresql, Enterprise Linux and 4 more 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.
CVE-2021-3672 6 C-ares Project, Fedoraproject, Nodejs and 3 more 17 C-ares, Fedora, Node.js and 14 more 2024-11-21 6.8 MEDIUM 5.6 MEDIUM
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.
CVE-2021-3669 5 Debian, Fedoraproject, Ibm and 2 more 24 Debian Linux, Fedora, Spectrum Copy Data Management and 21 more 2024-11-21 N/A 5.5 MEDIUM
A flaw was found in the Linux kernel. Measuring usage of the shared memory does not scale with large shared memory segment counts which could lead to resource exhaustion and DoS.
CVE-2021-3660 2 Cockpit-project, Redhat 2 Cockpit, Enterprise Linux 2024-11-21 4.3 MEDIUM 4.3 MEDIUM
Cockpit (and its plugins) do not seem to protect itself against clickjacking. It is possible to render a page from a cockpit server via another website, inside an <iFrame> HTML entry. This may be used by a malicious website in clickjacking or similar attacks.
CVE-2021-3659 3 Fedoraproject, Linux, Redhat 17 Fedora, Linux Kernel, Codeready Linux Builder and 14 more 2024-11-21 N/A 5.5 MEDIUM
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
CVE-2021-3657 4 Debian, Fedoraproject, Isync Project and 1 more 4 Debian Linux, Fedora, Isync and 1 more 2024-11-21 7.5 HIGH 9.8 CRITICAL
A flaw was found in mbsync versions prior to 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.
CVE-2021-3656 3 Fedoraproject, Linux, Redhat 26 Fedora, Linux Kernel, 3scale Api Management and 23 more 2024-11-21 7.2 HIGH 8.8 HIGH
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "virt_ext" field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape.
CVE-2021-3655 3 Debian, Linux, Redhat 3 Debian Linux, Linux Kernel, Enterprise Linux 2024-11-21 2.1 LOW 3.3 LOW
A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory.
CVE-2021-3654 2 Openstack, Redhat 2 Nova, Openstack Platform 2024-11-21 4.0 MEDIUM 6.1 MEDIUM
A vulnerability was found in openstack-nova's console proxy, noVNC. By crafting a malicious URL, noVNC could be made to redirect to any desired URL.
CVE-2021-3653 3 Debian, Linux, Redhat 3 Debian Linux, Linux Kernel, Enterprise Linux 2024-11-21 6.1 MEDIUM 8.8 HIGH
A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the "int_ctl" field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7.
CVE-2021-3644 1 Redhat 2 Descision Manager, Wildfly 2024-11-21 N/A 3.3 LOW
A flaw was found in wildfly-core in all versions. If a vault expression is in the form of a single attribute that contains multiple expressions, a user who was granted access to the management interface can potentially access a vault expression they should not be able to access and possibly retrieve the item which was stored in the vault. The highest threat from this vulnerability is data confidentiality and integrity.
CVE-2021-3642 2 Quarkus, Redhat 13 Quarkus, Build Of Quarkus, Codeready Studio and 10 more 2024-11-21 3.5 LOW 5.3 MEDIUM
A flaw was found in Wildfly Elytron in versions prior to 1.10.14.Final, prior to 1.15.5.Final and prior to 1.16.1.Final where ScramServer may be susceptible to Timing Attack if enabled. The highest threat of this vulnerability is confidentiality.
CVE-2021-3637 1 Redhat 2 Keycloak, Single Sign-on 2024-11-21 5.0 MEDIUM 7.5 HIGH
A flaw was found in keycloak-model-infinispan in keycloak versions before 14.0.0 where authenticationSessions map in RootAuthenticationSessionEntity grows boundlessly which could lead to a DoS attack.
CVE-2021-3636 1 Redhat 1 Openshift 2024-11-21 4.1 MEDIUM 4.6 MEDIUM
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.
CVE-2021-3635 3 Fedoraproject, Linux, Redhat 3 Fedora, Linux Kernel, Enterprise Linux 2024-11-21 4.9 MEDIUM 4.4 MEDIUM
A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.
CVE-2021-3634 6 Debian, Fedoraproject, Libssh and 3 more 7 Debian Linux, Fedora, Libssh and 4 more 2024-11-21 4.0 MEDIUM 6.5 MEDIUM
A flaw has been found in libssh in versions prior to 0.9.6. The SSH protocol keeps track of two shared secrets during the lifetime of the session. One of them is called secret_hash and the other session_id. Initially, both of them are the same, but after key re-exchange, previous session_id is kept and used as an input to new secret_hash. Historically, both of these buffers had shared length variable, which worked as long as these buffers were same. But the key re-exchange operation can also change the key exchange method, which can be based on hash of different size, eventually creating "secret_hash" of different size than the session_id has. This becomes an issue when the session_id memory is zeroed or when it is used again during second key re-exchange.
CVE-2021-3632 1 Redhat 3 Enterprise Linux, Keycloak, Single Sign-on 2024-11-21 N/A 7.5 HIGH
A flaw was found in Keycloak. This vulnerability allows anyone to register a new security device or key when there is not a device already registered for any user by using the WebAuthn password-less login flow.
CVE-2021-3631 2 Netapp, Redhat 4 Ontap Select Deploy Administration Utility, Enterprise Linux, Libvirt and 1 more 2024-11-21 3.3 LOW 6.3 MEDIUM
A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
CVE-2021-3629 2 Netapp, Redhat 9 Active Iq Unified Manager, Oncommand Insight, Oncommand Workflow Automation and 6 more 2024-11-21 4.3 MEDIUM 5.9 MEDIUM
A flaw was found in Undertow. A potential security issue in flow control handling by the browser over http/2 may potentially cause overhead or a denial of service in the server. The highest threat from this vulnerability is availability. This flaw affects Undertow versions prior to 2.0.40.Final and prior to 2.2.11.Final.