Red Hat Linux Security Advisories & CVEs
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Latest Red Hat advisories
High [CVE-2024-3727] digest type does not guarantee valid type
A flaw was found in the github.com/containers/image library. This flaw allows attackers to trigger unexpected authenticated registry accesses on behalf of a victim user, causing resource exhaustion, local path traversal, and other attacks. Some conditions are necessary for this attack to occur, such as the attacker being able to upload malicious images to the registry and persuade a victim to pull them. Hence, the severity of this flaw was rated as Moderate. Red Hat severity: Moderate — CVSS 8.3 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H). Weakness: CWE-354. Affected products named by the advisory: OADP-1.3-RHEL-9; Red Hat Advanced Cluster Security 4.4; Red Hat Advanced Cluster Security 4.5; Red Hat Enterprise Linux 8; and 24 more.
High [CVE-2024-3154] Cri-o: arbitrary command injection via pod annotation
A flaw was found in cri-o, where an arbitrary systemd property can be injected via a Pod annotation. Any user who can create a pod with an arbitrary annotation may perform an arbitrary action on the host system. Red Hat severity: Important — CVSS 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-77. Affected Red Hat products: Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; Red Hat OpenShift Container Platform 4.14; Red Hat OpenShift Container Platform 4.15. Red Hat fixing advisory: RHSA-2024:2784, RHSA-2024:3496, RHSA-2024:2672, RHSA-2024:2669.
High [CVE-2024-1139] Cluster-monitoring-operator: credentials leak
A credentials leak vulnerability was found in the cluster monitoring operator in OCP. This issue may allow a remote attacker who has basic login credentials to check the pod manifest to discover a repository pull secret. Red Hat severity: Important — CVSS 7.7 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N). Weakness: CWE-200. Affected Red Hat products: Red Hat OpenShift Container Platform 4.12; Red Hat OpenShift Container Platform 4.13; Red Hat OpenShift Container Platform 4.14; Red Hat OpenShift Container Platform 4.15; Red Hat OpenShift Container Platform 3.11. Red Hat lists Red Hat Advanced Cluster Management for Kubernetes 2 as not affected. Will not fix / out of support: Red Hat OpenShift Container Platform 3.11. Red Hat fixing advisory: RHSA-2024:2782, RHSA-2024:2047, RHSA-2024:1891, RHSA-2024:1887.
High [CVE-2024-1249] unvalidated cross-origin messages in checkloginiframe leads to ddos
A flaw was found in Keycloak's OIDC component in the "checkLoginIframe," which allows unvalidated cross-origin messages. This flaw allows attackers to coordinate and send millions of requests in seconds using simple code, significantly impacting the application's availability without proper origin validation for incoming messages. Affected products named by the advisory: Red Hat build of Keycloak 22; Red Hat Single Sign-On 7.6 for RHEL 7; Red Hat Single Sign-On 7.6 for RHEL 8; Red Hat Single Sign-On 7.6 for RHEL 9; and 6 more. Affected products named by the advisory: RHEL-8 based Middleware Containers; RHOSS-1.33-RHEL-8; Red Hat build of Apicurio Registry 2; Red Hat Decision Manager 7; and 2 more. Affected products named by the advisory: Red Hat JBoss Enterprise Application Platform 7; Red Hat Process Automation 7.
High [CVE-2024-1132] path transversal in redirection validation
A flaw was found in Keycloak, where it does not properly validate URLs included in a redirect. This issue could allow an attacker to construct a malicious request to bypass validation and access other URLs and sensitive information within the domain or conduct further attacks. This flaw affects any client that utilizes a wildcard in the Valid Redirect URIs field, and requires user interaction within the malicious URL. Red Hat Build of Quarkus is not impacted as this CVE affects the server-side Keycloak execution, but Quarkus only acts as a Keycloak client in its quarkus-keycloak-authorization extension. For this reason, Quarkus is marked as having a Low impact. Red Hat severity: Important — CVSS 8.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N). Weakness: CWE-22. Affected Red Hat products: Migration Toolkit for Runtimes 1 on RHEL 8; MTA-6.2-RHEL-9; Red Hat AMQ Broker 7; Red Hat build of Keycloak 22; Red Hat build of Keycloak 22.0.10; Red Hat Single Sign-On 7.6 for RHEL 7; Red Hat Single Sign-On 7.6 for RHEL 8; Red Hat Single Sign-On 7.6 for RHEL 9; RHEL-8 based Middleware Containers; RHSSO 7.6.8; Red Hat build of Apicurio Registry 2; Red Hat build of Quarkus; Red Hat Decision Manager 7; Red Hat Fuse 7; Red Hat JBoss Enterprise Application Platform 6; Red Hat Process Automation 7.
High [CVE-2024-1233] Eap: wildfly-elytron has a ssrf security issue
A flaw was found in` JwtValidator.resolvePublicKey` in JBoss EAP, where the validator checks jku and sends a HTTP request. During this process, no whitelisting or other filtering behavior is performed on the destination URL address, which may result in a server-side request forgery (SSRF) vulnerability. The SSRF vulnerability in JwtValidator.resolvePublicKey is considered a moderate severity issue due to its potential to allow unauthorized internal network access and exposure of sensitive information, albeit with certain constraints. The vulnerability leverages the absence of URL whitelisting or filtering when resolving the jku header, which can be exploited to make HTTP requests to arbitrary URLs. While the immediate impact might not directly compromise sensitive data or system integrity, it opens a pathway for attackers to discover and interact with internal services, potentially leading to further exploitation. The exploitation complexity and the need for an attacker to craft a malicious JWT token mitigate the severity to a moderate level, as it requires a certain degree of knowledge and capability to execute effectively. Red Hat severity: Moderate — CVSS 7.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L). Weakness: CWE-918.
High [CVE-2024-2700] leak of local configuration properties into quarkus applications
A vulnerability was found in the quarkus-core component. Quarkus captures local environment variables from the Quarkus namespace during the application's build, therefore, running the resulting application inherits the values captured at build time. Some local environment variables may have been set by the developer or CI environment for testing purposes, such as dropping the database during application startup or trusting all TLS certificates to accept self-signed certificates. If these properties are configured using environment variables or the.env facility, they are captured into the built application, which can lead to dangerous behavior if the application does not override these values. This behavior only happens for configuration properties from the `quarkus.*` namespace. Red Hat rates this as a Moderate impact vulnerability since this requires an attacker to have direct access to the environment variables to override, and the application must use that environment variable to be jeopardized. Red Hat severity: Moderate — CVSS 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-526. Affected products named by the advisory: HawtIO 4.0.0 for Red Hat build of Apache Camel 4; Red Hat AMQ Streams 2.7.0; Red Hat build of Apicurio Registry 2.6.1 GA; Red Hat build of Quarkus 3.2.12.Final; and 8 more.
High [CVE-2023-5685] Xnio: stackoverflowexception when the chain of notifier states becomes problematically big
A flaw was found in XNIO. The XNIO NotifierState that can cause a Stack Overflow Exception when the chain of notifier states becomes problematically large can lead to uncontrolled resource management and a possible denial of service (DoS). Red Hat rates this vulnerability as an Important impact as the uncontrolled resource consumption may lead to Denial of Service (DoS). This might be intentioned by an attacker who is looking to jeopardize an environment. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-400. Affected Red Hat products: Red Hat build of Apache Camel 4.4.0 for Spring Boot; Red Hat JBoss Enterprise Application Platform; Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7; Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7; Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8; Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9; Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7; Red Hat build of Apache Camel - HawtIO 4; Red Hat Integration Camel K 1; Red Hat JBoss Data Grid 7; Red Hat JBoss Fuse Service Works 6; Red Hat Process Automation 7.
High [CVE-2024-1394] Golang-fips/openssl: memory leaks in code encrypting and decrypting rsa payloads
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 majority of RHEL utilities are not long-running applications; instead, they are command-line tools. These tools utilize Golang package as build-time dependency, which is why they are classified as having a "Moderate" level of impact. Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-401. Affected products named by the advisory: Red Hat Ansible Automation Platform 2.4 for RHEL 8; Red Hat Ansible Automation Platform 2.4 for RHEL 9; Red Hat Developer Tools; Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions; and 37 more.
High [CVE-2024-1753] Buildah: buildah: container escape via improper bind mount validation
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. Red Hat has rated this vulnerability as Important rather than Critical because successful exploitation requires user interaction to process a maliciously crafted Containerfile. Additionally, default security hardening in Red Hat Enterprise Linux—specifically SELinux running in Enforcing mode—prevents unauthorized write access to host system files, restricting the potential breakout primarily to unauthorized read operations. Environments where container builds are executed with elevated host permissions against untrusted source definitions face the highest risk. Red Hat severity: Important — CVSS 8.6 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H). Weakness: CWE-59.
High [CVE-2024-1635] out-of-memory error after several closed connections with wildfly-http-client protocol
A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connection immediately, the server will end with both memory and open file limits exhausted at some point, depending on the amount of memory available. At HTTP upgrade to remoting, the WriteTimeoutStreamSinkConduit leaks connections if RemotingConnection is closed by Remoting ServerConnectionOpenListener. Because the remoting connection originates in Undertow as part of the HTTP upgrade, there is an external layer to the remoting connection. This connection is unaware of the outermost layer when closing the connection during the connection opening procedure. Hence, the Undertow WriteTimeoutStreamSinkConduit is not notified of the closed connection in this scenario. Because WriteTimeoutStreamSinkConduit creates a timeout task, the whole dependency tree leaks via that task, which is added to XNIO WorkerThread. So, the workerThread points to the Undertow conduit, which contains the connections and causes the leak. This is rated as Important due to the fact that this might be an unauthenticated remote issue exploited by a malicious user, causing a denial of service (DoS) to the affected server.
High [CVE-2024-1488] unrestricted reconfiguration enabled to anyone that may lead to local privilege escalation
A vulnerability was found in Unbound due to incorrect default permissions, allowing any process outside the unbound group to modify the unbound runtime configuration. If a process can connect over localhost to port 8953, it can alter the configuration of unbound.service. This flaw allows an unprivileged attacker to manipulate a running instance, potentially altering forwarders, allowing them to track all queries forwarded by the local resolver, and, in some cases, disrupting resolving altogether. Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.2 Telecommunications Update Service; Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions; and 9 more. Affected products named by the advisory: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Telecommunications Update Service; Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions; Red Hat Enterprise Linux 8.6 Extended Update Support; and 4 more.
High [CVE-2024-1485] decompress can delete files outside scope via relative paths
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. Red Hat Openshift has a "Low" rated impact due to the affected code being shipped, but unused. Red Hat severity: Important — CVSS 8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:H). Weakness: CWE-22. Affected Red Hat products: OpenShift Developer Tools and Services; Red Hat OpenShift Container Platform 4. Will not fix / out of support: OpenShift Developer Tools and Services. Red Hat does not currently list a fixing RHSA for this CVE.
High [CVE-2020-25657 +1] M2crypto: bleichenbacher timing attacks in the rsa decryption api - incomplete fix for CVE-2020-25657
A flaw was found in m2crypto. This issue may allow a remote attacker to decrypt captured messages in TLS servers that use RSA key exchanges, which may lead to exposure of confidential or sensitive data. This vulnerability exists due to an incomplete fix for CVE-2020-25657. Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N). Weakness: CWE-203. Affected Red Hat products: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Update Infrastructure 4 for Cloud Providers. Red Hat lists Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat Virtualization 4 as not affected. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7. Red Hat does not currently list a fixing RHSA for this CVE. Affected products named by the advisory: Red Hat package: m2crypto.
High [CVE-2024-21626] runc container breakout through process.cwd trickery and leaked fds
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. In runc 1.1.11 and earlier, due to an internal file descriptor leak, an attacker could cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace, allowing for a container escape by giving access to the host filesystem ("attack 2"). The same attack could be used by a malicious image to allow a container process to gain access to the host filesystem through runc run ("attack 1"). Variants of attacks 1 and 2 could be also be used to overwrite semi-arbitrary host binaries, allowing for complete container escapes ("attack 3a" and "attack 3b"). runc 1.1.12 includes patches for this issue. While a user performs `O_CLOEXEC` all file descriptors before executing the container code, the file descriptor is open when performing `setcwd(2)`, which means that the reference can be kept alive in the container by configuring the working directory to be a path resolved through the file descriptor. The non-dumpable bit is unset after `execve`, meaning there are multiple ways to attack this other than bad configurations. The only way to defend against it entirely is to close all unneeded file descriptors.
High [CVE-2023-6779] off-by-one heap-based buffer overflow in __vsyslog_internal
An off-by-one heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when these functions are called with a message bigger than INT_MAX bytes, leading to an incorrect calculation of the buffer size to store the message, resulting in an application crash. This issue affects glibc 2.37 and newer. The glibc package, as shipped with Red Hat products, is not affected by this vulnerability because this issue was introduced in glibc 2.37, this glibc version is not used by any Red Hat product. Red Hat severity: Important — CVSS 8.2 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H). Weakness: CWE-193. Red Hat lists Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
High [CVE-2023-6246] heap-based buffer overflow in __vsyslog_internal
A heap-based buffer overflow was found in the __vsyslog_internal function of the glibc library. This function is called by the syslog and vsyslog functions. This issue occurs when the openlog function was not called, or called with the ident argument set to NULL, and the program name (the basename of argv[0]) is bigger than 1024 bytes, resulting in an application crash or local privilege escalation. This issue affects glibc 2.36 and newer. The glibc package, as shipped with Red Hat products, is not affected by this vulnerability because this issue was introduced in glibc 2.36, this glibc version is not used by any Red Hat product. Red Hat severity: Important — CVSS 8.4 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). Weakness: CWE-122. Red Hat lists Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9 as not affected.
High [CVE-2023-6291] Keycloak: redirect_uri validation bypass
A flaw was found in the redirect_uri validation logic in Keycloak. This issue may allow a bypass of otherwise explicitly allowed hosts. A successful attack may lead to an access token being stolen, making it possible for the attacker to impersonate other users. Red Hat severity: Important — CVSS 7.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L). Weakness: CWE-601. Affected Red Hat products: Red Hat build of Keycloak 22; Red Hat build of Keycloak 22.0.7; Red Hat Single Sign-On 7; Red Hat Single Sign-On 7.6 for RHEL 7; Red Hat Single Sign-On 7.6 for RHEL 8; Red Hat Single Sign-On 7.6 for RHEL 9; RHEL-8 based Middleware Containers; Single Sign-On 7.6.6; Migration Toolkit for Applications 6. Red Hat lists Migration Toolkit for Applications 7; OpenShift Serverless; Red Hat Data Grid 8; Red Hat Decision Manager 7; Red Hat Fuse 7; Red Hat JBoss Data Grid 7; Red Hat JBoss Enterprise Application Platform 6; Red Hat Process Automation 7 as not affected. Will not fix / out of support: Migration Toolkit for Applications 6. Red Hat fixing advisory: RHSA-2023:7861, RHSA-2023:7860, RHSA-2024:0804, RHSA-2023:7854, RHSA-2024:0798, RHSA-2023:7856, RHSA-2024:0799, RHSA-2023:7855, RHSA-2024:0800, RHSA-2023:7857, RHSA-2024:0801, RHSA-2023:7858.
High [CVE-2023-52355] tiffrasterscanlinesize64 produce too-big size and could cause oom
An out-of-memory flaw was found in libtiff that could be triggered by passing a crafted tiff file to the TIFFRasterScanlineSize64() API. This flaw allows a remote attacker to cause a denial of service via a crafted input with a size smaller than 379 KB. Primarily, the exploit requires the crafted input to be smaller than 379 KB, imposing a limitation on the potential impact and reducing the likelihood of successful exploitation in practical scenarios. Furthermore, the nature of the vulnerability is limited to denial-of-service attacks, which, although disruptive, do not inherently pose a direct risk of data compromise or system compromise. However, it's important to acknowledge that denial-of-service attacks can still have significant operational implications, particularly in environments reliant on continuous availability. Red Hat severity: Moderate — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-787. Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 9; Red Hat Enterprise Linux 9.6 Extended Update Support; Red Hat AI Inference Server 3.2; Red Hat Discovery 2; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8. Will not fix / out of support: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8.
High [CVE-2023-6531] gc's deletion of an skb races with unix_stream_read_generic leading to uaf
A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on. Affected product named by the advisory: Red Hat Enterprise Linux 9.