CVE-2018-10878: High severity Canonical Ubuntu Linux vulnerability

Published Jun 29, 2018
·
Updated

A flaw was found in Linux kernel ext4 filesystem. A local user can cause an out-of-bound write and so a denial of service or possibly unspecified other impact by mounting and operating a crafted ext4 filesystem image.

References:

https://bugzilla.kernel.org/showbug.cgi?id=199865

Upstream patches:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=819b23f1c501b17b9694325471789e6b5cc2d0d2

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=77260807d1170a8cf35dbb06e07461a655f67eee

Other sources

A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write and a denial of service or unspecified other impact is possible by mounting and operating a crafted ext4 filesystem image.

— Ubuntu

Affected Software

49 affected componentsFixes available
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Linux Linux kernel<3.16.58
Linux Linux kernel>=3.17<3.18.124
Linux Linux kernel>=3.19<4.4.140
Linux Linux kernel>=4.5<4.9.112
Linux Linux kernel>=4.10<4.14.55
Linux Linux kernel>=4.15<4.17.6
Debian Debian Linux=8.0
redhat Enterprise Linux Desktop=7.0
redhat Enterprise Linux Server=7.0
redhat Enterprise Linux Workstation=7.0
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.11-17.2.12-1
ubuntu/linux-aws<4.4.0-1028.31
4.4.0-1028.31
ubuntu/linux-azure<4.15.0-1037.39~14.04.2
4.15.0-1037.39~14.04.2
ubuntu/linux-lts-xenial<4.4.0-134.160~14.04.1
4.4.0-134.160~14.04.1
ubuntu/linux*
ubuntu/linux<4.4.0-134.160
4.4.0-134.160
ubuntu/linux-aws<4.4.0-1066.76
4.4.0-1066.76
ubuntu/linux-aws-hwe<4.15.0-1032.34~16.04.1
4.15.0-1032.34~16.04.1
ubuntu/linux-azure<4.15.0-1037.39~16.04.1
4.15.0-1037.39~16.04.1
ubuntu/linux-gcp<4.15.0-1027.28~16.04.1
4.15.0-1027.28~16.04.1
ubuntu/linux-hwe<4.15.0-45.48~16.04.1
4.15.0-45.48~16.04.1
ubuntu/linux-kvm<4.4.0-1032.38
4.4.0-1032.38
ubuntu/linux-raspi2<4.4.0-1095.103
4.4.0-1095.103
ubuntu/linux-snapdragon<4.4.0-1099.104
4.4.0-1099.104
ubuntu/linux-fips<4.4.0-1008.10
4.4.0-1008.10
ubuntu/linux<4.15.0-44.47
4.15.0-44.47
ubuntu/linux-aws<4.15.0-1032.34
4.15.0-1032.34
ubuntu/linux-azure<4.15.0-1037.39
4.15.0-1037.39
ubuntu/linux-gcp<4.15.0-1027.28
4.15.0-1027.28
ubuntu/linux-kvm<4.15.0-1029.29
4.15.0-1029.29
ubuntu/linux-oem<4.15.0-1033.38
4.15.0-1033.38
ubuntu/linux-raspi2<4.15.0-1031.33
4.15.0-1031.33
ubuntu/linux-snapdragon<4.15.0-1053.57
4.15.0-1053.57
ubuntu/linux-azure-fde*
ubuntu/linux-azure-fde-5.15*
ubuntu/linux-gke*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-azure-6.11*
ubuntu/linux-gcp-6.11*
ubuntu/linux-hwe-6.11*
ubuntu/linux-lowlatency-hwe-6.11*
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 4.4.0-1028.31
  3. Upgrade

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

    Fixed in 4.15.0-1037.39~14.04.2
  4. Upgrade

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

    Fixed in 4.4.0-134.160~14.04.1
  5. Upgrade

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

    Fixed in 4.4.0-134.160
  6. Upgrade

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

    Fixed in 4.4.0-1066.76
  7. Upgrade

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

    Fixed in 4.15.0-1032.34~16.04.1
  8. Upgrade

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

    Fixed in 4.15.0-1037.39~16.04.1
  9. Upgrade

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

    Fixed in 4.15.0-1027.28~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-45.48~16.04.1
  11. Upgrade

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

    Fixed in 4.4.0-1032.38
  12. Upgrade

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

    Fixed in 4.4.0-1095.103
  13. Upgrade

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

    Fixed in 4.4.0-1099.104
  14. Upgrade

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

    Fixed in 4.4.0-1008.10
  15. Upgrade

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

    Fixed in 4.15.0-44.47
  16. Upgrade

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

    Fixed in 4.15.0-1032.34
  17. Upgrade

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

    Fixed in 4.15.0-1037.39
  18. Upgrade

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

    Fixed in 4.15.0-1027.28
  19. Upgrade

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

    Fixed in 4.15.0-1029.29
  20. Upgrade

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

    Fixed in 4.15.0-1033.38
  21. Upgrade

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

    Fixed in 4.15.0-1031.33
  22. Upgrade

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

    Fixed in 4.15.0-1053.57
  23. Upgrade

    Upgrade Linux kernel ext4 filesystem to a version that resolves this vulnerability.

    Patch 77260807d1170a8cf35dbb06e07461a655f67eee
  24. Upgrade

    Upgrade Linux kernel ext4 filesystem to a version that resolves this vulnerability.

    Patch 819b23f1c501b17b9694325471789e6b5cc2d0d2

Event History

Jun 29, 2018
Data Sourced
via Red Hat·06:03 PM
DescriptionSeverityAffected Software
Jul 26, 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·06:00 PM
Data Sourced
via MITRE·06:00 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·06:29 PM
RemedyDescriptionSeverityWeaknessAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2018-10878?

CVE-2018-10878 has a severity rating that may allow for denial of service or potentially other impacts due to an out-of-bounds write flaw.

2

How do I fix CVE-2018-10878?

To fix CVE-2018-10878, update the Linux kernel to a patched version that addresses the flaw.

3

What systems are affected by CVE-2018-10878?

CVE-2018-10878 affects various Linux kernel versions including those in Ubuntu 14.04, 16.04, 18.04, and several versions of Debian and Red Hat Enterprise Linux.

4

Can CVE-2018-10878 be exploited remotely?

CVE-2018-10878 requires local user access, meaning it cannot be exploited remotely without local access to the system.

5

What kind of attack is associated with CVE-2018-10878?

CVE-2018-10878 is associated with an attack that can lead to denial of service through manipulation of a crafted ext4 filesystem image.

Company

Resources

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