CVE-2018-13096: Medium severity Linux Linux kernel vulnerability

Published Jul 3, 2018
·
Updated

An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.14. A denial of service (out-of-bounds memory access and BUG) can occur upon encountering an abnormal bitmap size when mounting a crafted f2fs image.

Affected Software

46 affected componentsFixes available
Linux Linux kernel<=4.14
Debian Debian Linux=8.0
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
openSUSE Leap=42.3
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.11-17.2.12-1
ubuntu/linux-aws<4.4.0-1034.37
4.4.0-1034.37
ubuntu/linux-lts-xenial<4.4.0-139.165~14.04.1
4.4.0-139.165~14.04.1
ubuntu/linux-azure<4.15.0-1059.64~14.04.1
4.15.0-1059.64~14.04.1
ubuntu/linux*
ubuntu/linux<4.4.0-139.165
4.4.0-139.165
ubuntu/linux-aws<4.4.0-1072.82
4.4.0-1072.82
ubuntu/linux-aws-hwe<4.15.0-1047.49~16.04.1
4.15.0-1047.49~16.04.1
ubuntu/linux-azure<4.15.0-1055.60
4.15.0-1055.60
ubuntu/linux-gcp<4.15.0-1040.42~16.04.1
4.15.0-1040.42~16.04.1
ubuntu/linux-hwe<4.15.0-58.64~16.04.1
4.15.0-58.64~16.04.1
ubuntu/linux-kvm<4.4.0-1037.43
4.4.0-1037.43
ubuntu/linux-oracle<4.15.0-1021.23~16.04.1
4.15.0-1021.23~16.04.1
ubuntu/linux-raspi2<4.4.0-1100.108
4.4.0-1100.108
ubuntu/linux-snapdragon<4.4.0-1104.109
4.4.0-1104.109
ubuntu/linux-fips<4.4.0-1008.10
4.4.0-1008.10
ubuntu/linux<4.15.0-58.64
4.15.0-58.64
ubuntu/linux-aws<4.15.0-1047.49
4.15.0-1047.49
ubuntu/linux-azure<4.18.0-1011.11~18.04.1
4.18.0-1011.11~18.04.1
ubuntu/linux-gcp<4.15.0-1040.42
4.15.0-1040.42
ubuntu/linux-gke-4.15<4.15.0-1040.42
4.15.0-1040.42
ubuntu/linux-kvm<4.15.0-1042.42
4.15.0-1042.42
ubuntu/linux-oem<4.15.0-1050.57
4.15.0-1050.57
ubuntu/linux-oracle<4.15.0-1021.23
4.15.0-1021.23
ubuntu/linux-raspi2<4.15.0-1043.46
4.15.0-1043.46
ubuntu/linux-snapdragon<4.15.0-1060.66
4.15.0-1060.66
ubuntu/linux-aws-fips<4.15.0-2018.18
4.15.0-2018.18
ubuntu/linux-azure-fips<4.15.0-2006.7
4.15.0-2006.7
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-azure-fde*
ubuntu/linux-gke*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-raspi-realtime*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. 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 6.12.113-1Fixed in 7.2.11-1Fixed in 7.2.12-1
  2. Upgrade

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

    Fixed in 4.4.0-1034.37
  3. Upgrade

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

    Fixed in 4.4.0-139.165~14.04.1
  4. Upgrade

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

    Fixed in 4.15.0-1059.64~14.04.1
  5. Upgrade

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

    Fixed in 4.4.0-139.165
  6. Upgrade

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

    Fixed in 4.4.0-1072.82
  7. Upgrade

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

    Fixed in 4.15.0-1047.49~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1055.60
  9. Upgrade

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

    Fixed in 4.15.0-1040.42~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-58.64~16.04.1
  11. Upgrade

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

    Fixed in 4.4.0-1037.43
  12. Upgrade

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

    Fixed in 4.15.0-1021.23~16.04.1
  13. Upgrade

    Upgrade ubuntu/linux-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.4.0-1100.108
  14. Upgrade

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

    Fixed in 4.4.0-1104.109
  15. Upgrade

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

    Fixed in 4.4.0-1008.10
  16. Upgrade

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

    Fixed in 4.15.0-58.64
  17. Upgrade

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

    Fixed in 4.15.0-1047.49
  18. Upgrade

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

    Fixed in 4.18.0-1011.11~18.04.1
  19. Upgrade

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

    Fixed in 4.15.0-1040.42
  20. Upgrade

    Upgrade ubuntu/linux-gke-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1040.42
  21. Upgrade

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

    Fixed in 4.15.0-1042.42
  22. Upgrade

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

    Fixed in 4.15.0-1050.57
  23. Upgrade

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

    Fixed in 4.15.0-1021.23
  24. Upgrade

    Upgrade ubuntu/linux-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1043.46
  25. Upgrade

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

    Fixed in 4.15.0-1060.66
  26. Upgrade

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

    Fixed in 4.15.0-2018.18
  27. Upgrade

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

    Fixed in 4.15.0-2006.7

Event History

Jul 3, 2018
CVE Published
via OSV·12:00 AM
Data Sourced
via OSV·12:00 AM
DescriptionSeverityAffected Software
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·05:00 AM
Data Sourced
via MITRE·05:00 AM
Description
Data Sourced
via NVD·10:29 AM
RemedyDescriptionSeverityWeaknessAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2018-13096?

CVE-2018-13096 has a severity level that allows for a denial of service due to out-of-bounds memory access.

2

How do I fix CVE-2018-13096?

To fix CVE-2018-13096, update to a patched version of the Linux kernel such as 5.10.223-1 or newer.

3

Which versions of the Linux kernel are affected by CVE-2018-13096?

CVE-2018-13096 affects all versions of the Linux kernel up to and including 4.14.

4

What causes the vulnerability in CVE-2018-13096?

CVE-2018-13096 is caused by encountering an abnormal bitmap size when mounting a crafted f2fs image.

5

Are there specific Linux distributions affected by CVE-2018-13096?

Yes, Debian, Ubuntu, and openSUSE distributions along with their specified versions are affected by CVE-2018-13096.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203