ID

VAR-202112-2255

CVE

CVE-2021-45485

TITLE

Linux kernel Encryption problem vulnerability

DESCRIPTION

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses. Relevant releases/architectures: Red Hat Enterprise Linux Real Time EUS (v.8.4) - x86_64 Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4) - x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * A use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588) * Information leak in the IPv6 implementation (CVE-2021-45485) * Information leak in the IPv4 implementation (CVE-2021-45486) * Incomplete cleanup of multi-core shared buffers (aka SBDR) (CVE-2022-21123) * Incomplete cleanup of microarchitectural fill buffers (aka SBDS) (CVE-2022-21125) * Incomplete cleanup in specific special register write operations (aka DRPW) (CVE-2022-21166) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Bug Fix(es): * update RT source tree to the RHEL-8.4.z12 source tree (BZ#2119160) * using __this_cpu_add() in preemptible [00000000] - caller is __mod_memcg_lruvec_state+0x69/0x1c0 [None8.4.0.z] (BZ#2124454) 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Bugs fixed (https://bugzilla.redhat.com/): 2039911 - CVE-2021-45485 kernel: information leak in the IPv6 implementation 2039914 - CVE-2021-45486 kernel: information leak in the IPv4 implementation 2090237 - CVE-2022-21123 hw: cpu: Incomplete cleanup of multi-core shared buffers (aka SBDR) 2090240 - CVE-2022-21125 hw: cpu: Incomplete cleanup of microarchitectural fill buffers (aka SBDS) 2090241 - CVE-2022-21166 hw: cpu: Incomplete cleanup in specific special register write operations (aka DRPW) 2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation 6. Package List: Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4): Source: kernel-rt-4.18.0-305.65.1.rt7.137.el8_4.src.rpm x86_64: kernel-rt-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-kvm-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-kvm-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm Red Hat Enterprise Linux Real Time EUS (v.8.4): Source: kernel-rt-4.18.0-305.65.1.rt7.137.el8_4.src.rpm x86_64: kernel-rt-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.65.1.rt7.137.el8_4.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. Description: Red Hat Advanced Cluster Management for Kubernetes 2.3.11 images Red Hat Advanced Cluster Management for Kubernetes provides the capabilities to address common challenges that administrators and site reliability engineers face as they work across a range of public and private cloud environments. Clusters and applications are all visible and managed from a single console—with security policy built in. See the following Release Notes documentation, which will be updated shortly for this release, for additional details about this release: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.3/html/release_notes/ Security fixes: * node-fetch: exposure of sensitive information to an unauthorized actor (CVE-2022-0235) * follow-redirects: Exposure of Sensitive Information via Authorization Header leak (CVE-2022-0536) * nconf: Prototype pollution in memory store (CVE-2022-21803) * golang: crypto/elliptic IsOnCurve returns true for invalid field elements (CVE-2022-23806) * Moment.js: Path traversal in moment.locale (CVE-2022-24785) * golang: syscall: faccessat checks wrong group (CVE-2022-29526) * go-getter: writes SSH credentials into logfile, exposing sensitive credentials to local uses (CVE-2022-29810) Bug fixes: * RHACM 2.3.11 images (BZ# 2082087) 3. Bugs fixed (https://bugzilla.redhat.com/): 2044591 - CVE-2022-0235 node-fetch: exposure of sensitive information to an unauthorized actor 2053259 - CVE-2022-0536 follow-redirects: Exposure of Sensitive Information via Authorization Header leak 2053429 - CVE-2022-23806 golang: crypto/elliptic IsOnCurve returns true for invalid field elements 2072009 - CVE-2022-24785 Moment.js: Path traversal in moment.locale 2074689 - CVE-2022-21803 nconf: Prototype pollution in memory store 2080279 - CVE-2022-29810 go-getter: writes SSH credentials into logfile, exposing sensitive credentials to local uses 2082087 - RHACM 2.3.11 images 2084085 - CVE-2022-29526 golang: syscall: faccessat checks wrong group 5. Summary: The Migration Toolkit for Containers (MTC) 1.6.5 is now available. Description: The Migration Toolkit for Containers (MTC) enables you to migrate Kubernetes resources, persistent volume data, and internal container images between OpenShift Container Platform clusters, using the MTC web console or the Kubernetes API. Bugs fixed (https://bugzilla.redhat.com/): 2006044 - CVE-2021-39293 golang: archive/zip: malformed archive may cause panic or memory exhaustion (incomplete fix of CVE-2021-33196) 2007557 - CVE-2021-3807 nodejs-ansi-regex: Regular expression denial of service (ReDoS) matching ANSI escape codes 2057579 - [MTC UI] Cancel button on ?Migrations? page does not disappear when migration gets Failed/Succeeded with warnings 2072311 - HPAs of DeploymentConfigs are not being updated when migration from Openshift 3.x to Openshift 4.x 2074044 - [MTC] Rsync pods are not running as privileged 2074553 - Upstream Hook Runner image requires arguments be in a different order 5. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: OpenShift Container Platform 4.8.53 bug fix and security update Advisory ID: RHSA-2022:7874-01 Product: Red Hat OpenShift Enterprise Advisory URL: https://access.redhat.com/errata/RHSA-2022:7874 Issue date: 2022-11-18 CVE Names: CVE-2021-45485 CVE-2021-45486 CVE-2022-2588 CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-21618 CVE-2022-21619 CVE-2022-21624 CVE-2022-21626 CVE-2022-21628 CVE-2022-26945 CVE-2022-30321 CVE-2022-30322 CVE-2022-30323 CVE-2022-39399 CVE-2022-41974 ==================================================================== 1. Summary: Red Hat OpenShift Container Platform release 4.8.53 is now available with updates to packages and images that fix several bugs and add enhancements. This release includes a security update for Red Hat OpenShift Container Platform 4.8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Description: Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.8.53. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2022:7873 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.openshift.com/container-platform/4.8/release_notes/ocp-4-8-release-notes.html Security Fix(es): * go-getter: command injection vulnerability (CVE-2022-26945) * go-getter: unsafe download (issue 1 of 3) (CVE-2022-30321) * go-getter: unsafe download (issue 2 of 3) (CVE-2022-30322) * go-getter: unsafe download (issue 3 of 3) (CVE-2022-30323) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 3. Solution: For OpenShift Container Platform 4.8 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.8/release_notes/ocp-4-8-release-notes.html You may download the oc tool and use it to inspect release image metadata for x86_64, s390x, and ppc64le architectures. The image digests may be found at https://quay.io/repository/openshift-release-dev/ocp-release?tab=tags The sha values for the release are: (For x86_64 architecture) The image digest is sha256:ac2bbfa7036c64bbdb44f9a74df3dbafcff1b851d812bf2a48c4fabcac3c7a53 (For s390x architecture) The image digest is sha256:ac2c74a664257cea299126d4f789cdf9a5a4efc4a4e8c2361b943374d4eb21e4 (For ppc64le architecture) The image digest is sha256:53adc42ed30ad39d7117837dbf5a6db6943a8f0b3b61bc0d046b83394f5c28b2 All OpenShift Container Platform 4.8 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift Console or the CLI oc command. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.8/updating/updating-cluster-cli.html 4. Bugs fixed (https://bugzilla.redhat.com/): 2077100 - Console backend check for Web Terminal Operator incorrectly returns HTTP 204 2092918 - CVE-2022-30321 go-getter: unsafe download (issue 1 of 3) 2092923 - CVE-2022-30322 go-getter: unsafe download (issue 2 of 3) 2092925 - CVE-2022-30323 go-getter: unsafe download (issue 3 of 3) 2092928 - CVE-2022-26945 go-getter: command injection vulnerability 5. JIRA issues fixed (https://issues.jboss.org/): OCPBUGS-2205 - Prefer local dns does not work expectedly on OCPv4.8 OCPBUGS-2347 - [cluster-api-provider-baremetal] fix 4.8 build OCPBUGS-2577 - [4.8] ETCD Operator goes degraded when a second internal node ip is added OCPBUGS-2773 - e2e tests: Installs Red Hat Integration - 3scale operator test is failing due to change of Operator name OCPBUGS-2989 - [4.8] cri-o should report the stage of container and pod creation it's stuck at 6. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2022 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBY3csZNzjgjWX9erEAQgVQg//dfbbERoUaVbqbL5MAgN43BOuYuiK0zT2 wkUXSTkIyLGkEqCU6KGhwbrUvMqye1Fef7MomJ0sXUj1MfUuV4FInczZmioJf59d JAKdJQ8wEsqCaedwB+an5bVY6CEGdhsiN4a3JubKfGNkWcVOEr55acdgmu+n0hMJ 6zGQKgJLfBLPU7V/OG5zb/F2/GE6gwvqDsrrCMe6yZ7O2RTHDDnVI+bG1twhOjNb M/wxjxMc3KxAl/32EQXQQnDdicl8Fg3KSCLnVfKwQMfN3O9Fj5AFdW3kT27MKKrF DVsXTEeiLPvvUcfbu2KoLUqwXNajIDLNPYmwdWHrVZpOJcSSwDKxd3TRD1X8a5FO 2ZCpqk/InKz/mzhun+XSsyqY/KrevPFxiBzhfbPZE2EhBRXARUad4ycBlfSCacf9 wwFHEwPDzZ4NygYc1s+2dI9P5tDB+K21XB0d/41yq5XheYonBSu3Ji9+dqMIq/4R Hb+xisN5QoaB+3pf6PMIrhlvNestYQ4TzOHdmEpJRZOehIJ49bJXtIRXq6uDj52b 7gvzoKpRdy3QZNBLNcrJPB0be9yE8chRaxMa++fviQbNamJm3NPVL5jBzBNrEINr a9u8YMzpCzskWP3HdBUZ2bLT2zTnvb3Qj0vKQcUzO/hwl2z3hNbE2L+zOfXfWypj jBUti9NswAw=uJJL -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . ========================================================================== Ubuntu Security Notice USN-5299-1 February 22, 2022 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-lts-xenial: Linux hardware enablement kernel from Xenial for Trusty Details: Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147) It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129) It was discovered that the RPA PCI Hotplug driver implementation in the Linux kernel did not properly handle device name writes via sysfs, leading to a buffer overflow. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-28972) It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034) Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-34693) 马哲宇 discovered that the IEEE 1394 (Firewire) nosy packet sniffer driver in the Linux kernel did not properly perform reference counting in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3483) It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564) Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612) It was discovered that the tracing subsystem in the Linux kernel did not properly keep track of per-cpu ring buffer state. A privileged attacker could use this to cause a denial of service. (CVE-2021-3679) It was discovered that the MAX-3421 host USB device driver in the Linux kernel did not properly handle device removal events. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-38204) It was discovered that the 6pack network protocol driver in the Linux kernel did not properly perform validation checks. A privileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-42008) Amit Klein discovered that the IPv6 implementation in the Linux kernel could disclose internal state in some situations. An attacker could possibly use this to expose sensitive information. (CVE-2021-45485) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: linux-image-4.4.0-1100-kvm 4.4.0-1100.109 linux-image-4.4.0-1135-aws 4.4.0-1135.149 linux-image-4.4.0-219-generic 4.4.0-219.252 linux-image-4.4.0-219-lowlatency 4.4.0-219.252 linux-image-aws 4.4.0.1135.140 linux-image-generic 4.4.0.219.226 linux-image-kvm 4.4.0.1100.98 linux-image-lowlatency 4.4.0.219.226 linux-image-virtual 4.4.0.219.226 Ubuntu 14.04 ESM: linux-image-4.4.0-1099-aws 4.4.0-1099.104 linux-image-4.4.0-219-generic 4.4.0-219.252~14.04.1 linux-image-4.4.0-219-lowlatency 4.4.0-219.252~14.04.1 linux-image-aws 4.4.0.1099.97 linux-image-generic-lts-xenial 4.4.0.219.190 linux-image-lowlatency-lts-xenial 4.4.0.219.190 linux-image-virtual-lts-xenial 4.4.0.219.190 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-5299-1 CVE-2020-26147, CVE-2020-26558, CVE-2021-0129, CVE-2021-28972, CVE-2021-33034, CVE-2021-34693, CVE-2021-3483, CVE-2021-3564, CVE-2021-3612, CVE-2021-3679, CVE-2021-38204, CVE-2021-42008, CVE-2021-45485

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

encryption problem

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2026-02-06T22:20:19.099000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE