CVE-2019-19048: High severity Linux Linux kernel vulnerability

Published Nov 18, 2019
·
Updated

A memory leak in the cryptoreportstat() function in drivers/virt/vboxguest/vboxguestutils.c in the Linux kernel before 5.3.9 allows attackers to cause a denial of service (memory consumption) by triggering copyformuser() failures, aka CID-e0b0cb938864.

Affected Software

5 affected componentsFixes available
Linux Linux kernel>=4.16<4.19.82
Linux Linux kernel>=4.20<5.3.9
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1

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

Event History

Nov 18, 2019
CVE Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·05:23 AM
Data Sourced
via MITRE·05:23 AM
Description
Data Sourced
via NVD·06:15 AM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2019-19048?

CVE-2019-19048 is classified as a medium severity vulnerability due to its potential for denial of service caused by a memory leak.

2

How do I fix CVE-2019-19048?

You can mitigate CVE-2019-19048 by upgrading to Linux kernel versions 5.3.9 or later.

3

What operating systems are affected by CVE-2019-19048?

CVE-2019-19048 affects various Linux kernel versions prior to 5.3.9 and specific distributions like Ubuntu 18.04 and 19.10.

4

What are the potential impacts of CVE-2019-19048?

Exploiting CVE-2019-19048 can lead to a denial of service by exhausting system memory.

5

Is there a patch available for CVE-2019-19048?

Yes, patches are included in updated versions of the Linux kernel starting from 5.3.9.

Contact

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