CVE-2022-2078: Buffer Overflow

Published May 31, 2022
·
Updated

A vulnerability was found in the Linux kernel's nftsetdescconcatparse() function .This flaw allows an attacker to trigger a buffer overflow via nftsetdescconcatparse() , causing a denial of service and possibly to run code.

Other sources

An attacker can trigger a buffer overflow of the Linux kernel, via nftsetdescconcatparse(), in order to trigger a denial of service, and possibly to run code.

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/netfilter/nftablesapi.c?id=fecf31ee395b0295f2d7260aa29946b7605f7c85

— Red Hat

Affected Software

75 affected componentsFixes available
redhat/kernel-rt<0:4.18.0-425.3.1.rt7.213.el8
0:4.18.0-425.3.1.rt7.213.el8
redhat/kernel<0:4.18.0-425.3.1.el8
0:4.18.0-425.3.1.el8
redhat/kernel<0:5.14.0-70.26.1.el9_0
0:5.14.0-70.26.1.el9_0
redhat/kernel-rt<0:5.14.0-70.26.1.rt21.98.el9_0
0:5.14.0-70.26.1.rt21.98.el9_0
Linux Linux kernel<5.19
redhat Virtualization=4.0
redhat Enterprise Linux=8.0
redhat Enterprise Linux=9.0
Debian Debian Linux=11.0
redhat/kernel<5.19
5.19
debian/linux<5.18.2-1
5.18.2-1
debian/linux<5.18.2-1
5.18.2-1
debian/linux<5.18.2-1
5.18.2-1
ubuntu/linux-hwe-edge*
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gke-4.15*
ubuntu/linux-hwe*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-azure-5.15<5.15.0-1014.17~20.04.1
5.15.0-1014.17~20.04.1
ubuntu/linux-gcp-5.15<5.15.0-1013.18~20.04.1
5.15.0-1013.18~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-41.44~20.04.1
5.15.0-41.44~20.04.1
ubuntu/linux-intel-iotg-5.15<5.15.0-1008.11~20.04.1
5.15.0-1008.11~20.04.1
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-42.45~20.04.1
5.15.0-42.45~20.04.1
ubuntu/linux-oem-5.14<5.14.0-1042.47
5.14.0-1042.47
ubuntu/linux-oracle-5.15<5.15.0-1013.17~20.04.1
5.15.0-1013.17~20.04.1
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.8*
ubuntu/linux-bluefield*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.8*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.8*
ubuntu/linux-intel-5.13*
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.8*
ubuntu/linux<5.15.0-37.39
5.15.0-37.39
ubuntu/linux-aws<5.15.0-1011.14
5.15.0-1011.14
ubuntu/linux-azure<5.15.0-1010.12
5.15.0-1010.12
ubuntu/linux-gcp<5.15.0-1008.12
5.15.0-1008.12
ubuntu/linux-gke<5.15.0-1008.10
5.15.0-1008.10
ubuntu/linux-ibm<5.15.0-1007.8
5.15.0-1007.8
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1008.11
5.15.0-1008.11
ubuntu/linux-kvm<5.15.0-1010.11
5.15.0-1010.11
ubuntu/linux-lowlatency<5.15.0-37.39
5.15.0-37.39
ubuntu/linux-oem-5.17<5.17.0-1011.12
5.17.0-1011.12
ubuntu/linux-oracle<5.15.0-1009.12
5.15.0-1009.12
ubuntu/linux-raspi<5.15.0-1011.13
5.15.0-1011.13
ubuntu/linux-realtime*
ubuntu/linux-riscv<5.15.0-1014.16
5.15.0-1014.16
ubuntu/linux-realtime<5.15.0-1014.14
5.15.0-1014.14
ubuntu/linux-raspi-realtime*
debian/linux
6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel-rt to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-425.3.1.rt7.213.el8
  2. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:4.18.0-425.3.1.el8
  3. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 0:5.14.0-70.26.1.el9_0
  4. Upgrade

    Upgrade redhat/kernel-rt to a version that resolves this vulnerability.

    Fixed in 0:5.14.0-70.26.1.rt21.98.el9_0
  5. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 5.19
  6. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.18.2-1
  7. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.3-1
  8. Upgrade

    Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1014.17~20.04.1
  9. Upgrade

    Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1013.18~20.04.1
  10. Upgrade

    Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-41.44~20.04.1
  11. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1008.11~20.04.1
  12. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-42.45~20.04.1
  13. Upgrade

    Upgrade ubuntu/linux-oem-5.14 to a version that resolves this vulnerability.

    Fixed in 5.14.0-1042.47
  14. Upgrade

    Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1013.17~20.04.1
  15. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.15.0-37.39
  16. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.15.0-1011.14
  17. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.15.0-1010.12
  18. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.15.0-1008.12
  19. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.15.0-1008.10
  20. Upgrade

    Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1007.8
  21. Upgrade

    Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.

    Fixed in 5.15.0-1008.11
  22. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.15.0-1010.11
  23. Upgrade

    Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.

    Fixed in 5.15.0-37.39
  24. Upgrade

    Upgrade ubuntu/linux-oem-5.17 to a version that resolves this vulnerability.

    Fixed in 5.17.0-1011.12
  25. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.15.0-1009.12
  26. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.15.0-1011.13
  27. Upgrade

    Upgrade ubuntu/linux-riscv to a version that resolves this vulnerability.

    Fixed in 5.15.0-1014.16
  28. Upgrade

    Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.

    Fixed in 5.15.0-1014.14
  29. Configuration

    Disable unprivileged users from creating namespaces by setting kernel.unprivileged_userns_clone=0 with sysctl; persist the setting in /etc/sysctl.d/99-disable-unpriv-userns.conf.

    Linux kernel kernel.unprivileged_userns_clone = 0

Event History

May 31, 2022
CVE Published
06:30 AM
Jun 13, 2022
Data Sourced
via Red Hat·08:02 AM
DescriptionSeverityAffected Software
Jun 30, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness
Data Sourced
via OSV·01:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·01:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2022-2078?

CVE-2022-2078 is classified as a high severity vulnerability due to its potential to cause a denial of service and execute arbitrary code.

2

How do I fix CVE-2022-2078?

To fix CVE-2022-2078, upgrade to the patched versions of the Linux kernel provided by Red Hat or Debian as specified in the vulnerability details.

3

Which Linux kernel versions are affected by CVE-2022-2078?

CVE-2022-2078 affects kernel versions up to 5.19 and specific versions of the Red Hat kernel and Debian Linux.

4

Can CVE-2022-2078 be exploited remotely?

Yes, CVE-2022-2078 can be exploited remotely through malformed packets processed by the kernel's network filtering capabilities.

5

What are the potential impacts of CVE-2022-2078 on my system?

The potential impacts of CVE-2022-2078 include system crashes, denial of service, and unauthorized code execution, compromising system integrity.

Company

Resources

Contact

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