CVE-2018-10021: Medium severity Linux Linux kernel vulnerability

Published Apr 11, 2018
·
Updated

DISPUTED drivers/scsi/libsas/sasscsihost.c in the Linux kernel before 4.16 allows local users to cause a denial of service (ata qc leak) by triggering certain failure conditions. NOTE: a third party disputes the relevance of this report because the failure can only occur for physically proximate attackers who unplug SAS Host Bus Adapter cables.

Affected Software

34 affected componentsFixes available
Linux Linux kernel<4.16
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1
ubuntu/linux<3.13.0-157.207
3.13.0-157.207
ubuntu/linux-aws<4.4.0-1024.25
4.4.0-1024.25
ubuntu/linux-lts-xenial<4.4.0-130.156~14.04.1
4.4.0-130.156~14.04.1
ubuntu/linux<4.4.0-130.156
4.4.0-130.156
ubuntu/linux-aws<4.4.0-1062.71
4.4.0-1062.71
ubuntu/linux-azure<4.15.0-1013.13~16.04.2
4.15.0-1013.13~16.04.2
ubuntu/linux-gcp<4.15.0-1014.14~16.04.1
4.15.0-1014.14~16.04.1
ubuntu/linux-hwe<4.15.0-24.26~16.04.1
4.15.0-24.26~16.04.1
ubuntu/linux-kvm<4.4.0-1029.34
4.4.0-1029.34
ubuntu/linux-raspi2<4.4.0-1092.100
4.4.0-1092.100
ubuntu/linux-snapdragon<4.4.0-1095.100
4.4.0-1095.100
ubuntu/linux-fips<4.4.0-1008.10
4.4.0-1008.10
ubuntu/linux<4.15.0-23.25
4.15.0-23.25
ubuntu/linux-aws<4.15.0-1010.10
4.15.0-1010.10
ubuntu/linux-azure<4.15.0-1013.13
4.15.0-1013.13
ubuntu/linux-gcp<4.15.0-1009.9
4.15.0-1009.9
ubuntu/linux-kvm<4.15.0-1011.11
4.15.0-1011.11
ubuntu/linux-oem<4.15.0-1008.11
4.15.0-1008.11
ubuntu/linux-raspi2<4.15.0-1012.13
4.15.0-1012.13
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 7.2.12-1Fixed in 7.2.13-1
  2. Upgrade

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

    Fixed in 3.13.0-157.207
  3. Upgrade

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

    Fixed in 4.4.0-1024.25
  4. Upgrade

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

    Fixed in 4.4.0-130.156~14.04.1
  5. Upgrade

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

    Fixed in 4.4.0-130.156
  6. Upgrade

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

    Fixed in 4.4.0-1062.71
  7. Upgrade

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

    Fixed in 4.15.0-1013.13~16.04.2
  8. Upgrade

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

    Fixed in 4.15.0-1014.14~16.04.1
  9. Upgrade

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

    Fixed in 4.15.0-24.26~16.04.1
  10. Upgrade

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

    Fixed in 4.4.0-1029.34
  11. Upgrade

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

    Fixed in 4.4.0-1092.100
  12. Upgrade

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

    Fixed in 4.4.0-1095.100
  13. Upgrade

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

    Fixed in 4.4.0-1008.10
  14. Upgrade

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

    Fixed in 4.15.0-23.25
  15. Upgrade

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

    Fixed in 4.15.0-1010.10
  16. Upgrade

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

    Fixed in 4.15.0-1013.13
  17. Upgrade

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

    Fixed in 4.15.0-1009.9
  18. Upgrade

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

    Fixed in 4.15.0-1011.11
  19. Upgrade

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

    Fixed in 4.15.0-1008.11
  20. Upgrade

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

    Fixed in 4.15.0-1012.13

Event History

Apr 11, 2018
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via OSV·12:00 AM
DescriptionSeverityAffected Software
CVE Published
via MITRE·05:00 PM
Data Sourced
via MITRE·05:00 PM
Description
Disputed
05:29 PM
Data Sourced
via NVD·05:29 PM
DescriptionSeverityAffected Software

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the vulnerability ID?

The vulnerability ID is CVE-2018-10021.

2

What is the severity of CVE-2018-10021?

The severity of CVE-2018-10021 is not specified.

3

How can local users exploit CVE-2018-10021?

Local users can exploit CVE-2018-10021 by triggering certain failure conditions.

4

Is there a fix available for CVE-2018-10021?

Yes, a fix is available in Linux kernel version 4.16 and later.

5

Where can I find more information about CVE-2018-10021?

You can find more information about CVE-2018-10021 on the following websites: - [Git Kernel](http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=318aaf34f1179b39fa9c30fa0f3288b645beee39) - [GitHub](https://github.com/torvalds/linux/commit/318aaf34f1179b39fa9c30fa0f3288b645beee39) - [Bugzilla](https://bugzilla.suse.com/show_bug.cgi?id=1089281)

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