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Red Hat Security Advisory 2023-0859-01

Red Hat Security Advisory 2023-0859-01 - The redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host’s resources and performing administrative tasks. The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host’s resources and performing administrative tasks. Issues addressed include code execution and integer overflow vulnerabilities.

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====================================================================
Red Hat Security Advisory

Synopsis: Important: Red Hat Virtualization Host 4.4.z SP 1 security update batch#4 (oVirt-4.5.3-4)
Advisory ID: RHSA-2023:0859-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0859
Issue date: 2023-02-21
CVE Names: CVE-2022-4139 CVE-2022-47629 CVE-2023-22809
====================================================================

  1. Summary:

An update for redhat-release-virtualization-host and
redhat-virtualization-host is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 8.

An update for redhat-release-virtualization-host,
redhat-virtualization-host, and redhat-virtualization-host-productimg is
now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 8.

  1. Relevant releases/architectures:

RHEL 8-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 8 - x86_64

  1. Description:

The redhat-virtualization-host packages provide the Red Hat Virtualization
Host. These packages include redhat-release-virtualization-host,
ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are
installed using a special build of Red Hat Enterprise Linux with only the
packages required to host virtual machines. RHVH features a Cockpit user
interface for monitoring the host’s resources and performing administrative
tasks.

The ovirt-node-ng packages provide the Red Hat Virtualization Host. These
packages include redhat-release-virtualization-host, ovirt-node, and
rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a
special build of Red Hat Enterprise Linux with only the packages required
to host virtual machines. RHVH features a Cockpit user interface for
monitoring the host’s resources and performing administrative tasks.

Security Fix(es):

  • kernel: i915: Incorrect GPU TLB flush can lead to random memory access
    (CVE-2022-4139)

  • libksba: integer overflow to code execution (CVE-2022-47629)

  • sudo: arbitrary file write with privileges of the RunAs user
    (CVE-2023-22809)

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.

  1. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/2974891

  1. Bugs fixed (https://bugzilla.redhat.com/):

2147572 - CVE-2022-4139 kernel: i915: Incorrect GPU TLB flush can lead to random memory access
2161142 - CVE-2023-22809 sudo: arbitrary file write with privileges of the RunAs user
2161571 - CVE-2022-47629 libksba: integer overflow to code execution
2169971 - Rebase RHV-H 4.4 SP1 on RHEL 8.6.0.6 EUS

  1. Package List:

Red Hat Virtualization 4 Hypervisor for RHEL 8:

Source:
redhat-virtualization-host-4.5.3-202302150956_8.6.src.rpm

x86_64:
redhat-virtualization-host-image-update-4.5.3-202302150956_8.6.x86_64.rpm

RHEL 8-based RHEV-H for RHEV 4 (build requirements):

Source:
redhat-release-virtualization-host-4.5.3-4.el8ev.src.rpm

noarch:
redhat-virtualization-host-image-update-placeholder-4.5.3-4.el8ev.noarch.rpm

x86_64:
redhat-release-virtualization-host-4.5.3-4.el8ev.x86_64.rpm
redhat-release-virtualization-host-content-4.5.3-4.el8ev.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/

  1. References:

https://access.redhat.com/security/cve/CVE-2022-4139
https://access.redhat.com/security/cve/CVE-2022-47629
https://access.redhat.com/security/cve/CVE-2023-22809
https://access.redhat.com/security/updates/classification/#important

  1. Contact:

The Red Hat security contact is [email protected]. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2023 Red Hat, Inc.
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Ubuntu Security Notice 5811-1 - Matthieu Barjole and Victor Cutillas discovered that Sudo incorrectly handled user-specified editors when using the sudoedit command. A local attacker that has permission to use the sudoedit command could possibly use this issue to edit arbitrary files. It was discovered that the Protobuf-c library, used by Sudo, incorrectly handled certain arithmetic shifts. An attacker could possibly use this issue to cause Sudo to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS.

CVE-2023-22809

In Sudo before 1.9.12p2, the sudoedit (aka -e) feature mishandles extra arguments passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR), allowing a local attacker to append arbitrary entries to the list of files to process. This can lead to privilege escalation. Affected versions are 1.8.0 through 1.9.12.p1. The problem exists because a user-specified editor may contain a "--" argument that defeats a protection mechanism, e.g., an EDITOR='vim -- /path/to/extra/file' value.

Red Hat Security Advisory 2023-0114-01

Red Hat Security Advisory 2023-0114-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

RHSA-2023:0114: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 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.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2022-2964: kernel: memory corruption in AX88179_178A based USB ethernet device. * CVE-2022-4139: kernel: i915: Incorrect GPU TLB flush can lead to random memory access

Debian Security Advisory 5305-1

Debian Linux Security Advisory 5305-1 - An integer overflow flaw was discovered in the CRL signature parser in libksba, an X.509 and CMS support library, which could result in denial of service or the execution of arbitrary code.

CVE-2022-47629: ⚓ T6284 Another integer overflow in Libksba

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

CVE-2022-4129: [SECURITY] Fedora 35 Update: kernel-6.0.11-100.fc35 - package-announce

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

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