critical
9
CWE
787
Advisory Published
CVE Published
CVE Published
Updated

CVE-2022-0435

First published: Mon Jan 31 2022(Updated: )

A remote stack overflow in the TIPC networking module. With FORTIFY_SOURCE's stricter memcpy() bounds checking, this can be exploited to cause remote DOS via kernel panic on systems using TIPC. Prior to these bounds checks, and with a canary leak (or no CONFIG_STACKPROTECTOR), this can be exploited for RCE. Reference: <a href="https://www.openwall.com/lists/oss-security/2022/02/10/1">https://www.openwall.com/lists/oss-security/2022/02/10/1</a>

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel-rt<0:4.18.0-348.20.1.rt7.150.el8_5
0:4.18.0-348.20.1.rt7.150.el8_5
redhat/kernel<0:4.18.0-348.20.1.el8_5
0:4.18.0-348.20.1.el8_5
redhat/kernel<0:4.18.0-147.65.1.el8_1
0:4.18.0-147.65.1.el8_1
redhat/kernel-rt<0:4.18.0-193.80.1.rt13.130.el8_2
0:4.18.0-193.80.1.rt13.130.el8_2
redhat/kernel<0:4.18.0-193.80.1.el8_2
0:4.18.0-193.80.1.el8_2
redhat/kernel-rt<0:4.18.0-305.40.1.rt7.112.el8_4
0:4.18.0-305.40.1.rt7.112.el8_4
redhat/kernel<0:4.18.0-305.40.1.el8_4
0:4.18.0-305.40.1.el8_4
redhat/kernel<5.17
5.17
Linux Kernel>=4.8<4.9.301
Linux Kernel>=4.10<4.14.266
Linux Kernel>=4.15<4.19.229
Linux Kernel>=4.20<5.4.179
Linux Kernel>=5.5<5.10.100
Linux Kernel>=5.11<5.15.23
Linux Kernel>=5.16<5.16.9
Linux Kernel=5.17
Linux Kernel=5.17-rc1
Linux Kernel=5.17-rc2
Linux Kernel=5.17-rc3
Red Hat CodeReady Linux Builder=8.0
Red Hat CodeReady Linux Builder=8.4
Red Hat CodeReady Linux Builder=8.2
Red Hat CodeReady Linux Builder for Power, little endian=8.2
Red Hat CodeReady Linux Builder for Power, little endian=8.0
Red Hat CodeReady Linux Builder for Power, little endian=8.4
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux Server EUS=8.2
Red Hat Enterprise Linux Server EUS=8.4
Red Hat Enterprise Linux for IBM Z Systems=8.0
Red Hat Enterprise Linux for IBM Z Systems (s390x)=8.2
Red Hat Enterprise Linux for IBM Z Systems (s390x)=8.4
Red Hat Enterprise Linux for Power, little endian=8.0
Red Hat Enterprise Linux for Power, little endian - Extended Update Support=8.2
Red Hat Enterprise Linux for Power, little endian - Extended Update Support=8.4
Red Hat Enterprise Linux for Real Time=8
Red Hat Enterprise Linux for Real Time for NFV=8
Red Hat Enterprise Linux for Real Time for NFV=8.2
Red Hat Enterprise Linux for Real Time for NFV=8.4
Red Hat Enterprise Linux for Real Time=8.2
Red Hat Enterprise Linux for Real Time=8.4
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux for SAP Applications for Power, little endian - Extended Update Support=8.2
Red Hat Enterprise Linux for SAP Applications for Power, little endian - Extended Update Support=8.4
Red Hat Enterprise Linux Server=8.2
Red Hat Enterprise Linux Server=8.4
Red Hat Enterprise Linux Server Update Services for SAP Solutions=8.2
Red Hat Enterprise Linux Server Update Services for SAP Solutions=8.4
All of
Any of
Red Hat Enterprise Virtualization=4.0
Red Hat Virtualization Host EUS=4.0
Red Hat Enterprise Linux=8.0
oVirt=4.4.10
Red Hat Fedora=34
Red Hat Fedora=35
All of
NetApp H300E
NetApp H300E Firmware
All of
NetApp H300S Firmware
NetApp H300S Firmware
All of
NetApp H410S
NetApp H410S Firmware
All of
NetApp H500S Firmware
NetApp H500e Firmware
All of
NetApp H500e Firmware
NetApp H500e Firmware
All of
NetApp H700E
NetApp H700E
All of
NetApp H700S
NetApp H700S
Red Hat Enterprise Virtualization=4.0
Red Hat Virtualization Host EUS=4.0
Red Hat Enterprise Linux=8.0
NetApp H300E
NetApp H300E Firmware
NetApp H300S Firmware
NetApp H300S Firmware
NetApp H410S
NetApp H410S Firmware
NetApp H500S Firmware
NetApp H500e Firmware
NetApp H500e Firmware
NetApp H500e Firmware
NetApp H700E
NetApp H700E
NetApp H700S
NetApp H700S
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.133-1
6.12.21-1
6.12.22-1

Remedy

The TIPC module will NOT be automatically loaded. When required, administrative action is needed to explicitly load this module. Loading the module can be prevented with the following instructions: # echo "install tipc /bin/true" >> /etc/modprobe.d/disable-tipc.conf The system will need to be restarted if the tipc module is loaded. In most circumstances, the TIPC kernel module will be unable to be unloaded while any network interfaces are active and the protocol is in use. If the system requires this module to work correctly, this mitigation may not be suitable.

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=2048738

Remedy

https://www.openwall.com/lists/oss-security/2022/02/10/1

Remedy

Ensure the tipc module is not loaded; unlike many other network protocols in the Linux kernel, the tipc module cannot be auto-loaded by an unprivileged user.

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-0435?

    CVE-2022-0435 is classified as a high severity vulnerability due to its potential for remote denial of service via kernel panic.

  • How do I fix CVE-2022-0435?

    To mitigate CVE-2022-0435, upgrade your kernel to versions 0:4.18.0-348.20.1.rt7.150.el8_5 or 0:4.18.0-348.20.1.el8_5 for Red Hat systems.

  • Which systems are affected by CVE-2022-0435?

    CVE-2022-0435 affects multiple versions of the Linux kernel, particularly those utilizing TIPC networking in Red Hat and Fedora distributions.

  • Can CVE-2022-0435 lead to system exploitation?

    Exploitation of CVE-2022-0435 can result in a remote denial of service, which may crash systems utilizing the vulnerable TIPC module.

  • Is CVE-2022-0435 a local or remote vulnerability?

    CVE-2022-0435 is a remote vulnerability, allowing attackers to potentially cause harm without requiring local access.

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