CVE-2019-11599: Race Condition

Published Apr 19, 2019
·
Updated

A flaw was found in the Linux kernel where the coredump implementation does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs. This allows local users to obtain sensitive information, cause a denial of service (DoS), or possibly have unspecified other impact by triggering a race condition with mmgetnotzero or gettaskmm calls.

Other sources

The coredump implementation in the Linux kernel before 5.0.10 does not use locking or other mechanisms to prevent vma layout or vma flags changes while it runs, which allows local users to obtain sensitive information, cause a denial of service, or possibly have unspecified other impact by triggering a race condition with mmgetnotzero or gettaskmm calls. This is related to fs/userfaultfd.c, mm/mmap.c, fs/proc/taskmmu.c, and drivers/infiniband/core/uverbsmain.c.

— Ubuntu

Affected Software

18 affected componentsFixes available
redhat/kernel-rt<0:3.10.0-1062.rt56.1022.el7
0:3.10.0-1062.rt56.1022.el7
redhat/kernel<0:3.10.0-1062.el7
0:3.10.0-1062.el7
redhat/kernel<0:3.10.0-693.62.1.el7
0:3.10.0-693.62.1.el7
redhat/kernel<0:3.10.0-862.48.1.el7
0:3.10.0-862.48.1.el7
redhat/kernel<0:3.10.0-957.43.1.el7
0:3.10.0-957.43.1.el7
redhat/kernel-rt<0:4.18.0-147.rt24.93.el8
0:4.18.0-147.rt24.93.el8
redhat/kernel<0:4.18.0-147.el8
0:4.18.0-147.el8
redhat/kernel-rt<1:3.10.0-693.62.1.rt56.659.el6
1:3.10.0-693.62.1.rt56.659.el6
redhat/kernel<5.0.10
5.0.10
Linux Linux kernel>=2.16.12<3.16.66
Linux Linux kernel>=3.17<4.4.183
Linux Linux kernel>=4.5<4.9.188
Linux Linux kernel>=4.10<4.14.114
Linux Linux kernel>=4.15<4.19.37
Linux Linux kernel>=4.20<5.0.10
Linux Linux kernel<5.0.10
Google Android
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-1

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 0:3.10.0-1062.rt56.1022.el7
  2. Upgrade

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

    Fixed in 0:3.10.0-1062.el7
  3. Upgrade

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

    Fixed in 0:3.10.0-693.62.1.el7
  4. Upgrade

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

    Fixed in 0:3.10.0-862.48.1.el7
  5. Upgrade

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

    Fixed in 0:3.10.0-957.43.1.el7
  6. Upgrade

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

    Fixed in 0:4.18.0-147.rt24.93.el8
  7. Upgrade

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

    Fixed in 0:4.18.0-147.el8
  8. Upgrade

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

    Fixed in 1:3.10.0-693.62.1.rt56.659.el6
  9. Upgrade

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

    Fixed in 5.0.10
  10. 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 7.2.12-1
  11. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 4.14.114
  12. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 4.19.37
  13. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Fixed in 5.0.10

Event History

Apr 19, 2019
CVE Published
12:00 AM
Apr 29, 2019
Data Sourced
via Ubuntu·12:00 AM
RemedyDescriptionSeverityAffected Software
CVE Published
via MITRE·05:07 PM
Data Sourced
via MITRE·05:07 PM
Description
Data Sourced
via NVD·06:29 PM
RemedyDescriptionSeverityWeaknessAffected Software
Feb 3, 2020
Data Sourced
via Android·12:00 AM
SeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2019-11599?

CVE-2019-11599 has been assigned a severity rating of medium due to its potential to allow local users to cause a denial of service or obtain sensitive information.

2

How do I fix CVE-2019-11599?

To fix CVE-2019-11599, update to the appropriate kernel version that includes the security patch for this vulnerability.

3

What systems are affected by CVE-2019-11599?

CVE-2019-11599 affects various versions of the Linux kernel, particularly those prior to the patched versions listed by Red Hat.

4

Can CVE-2019-11599 lead to data breaches?

Yes, CVE-2019-11599 can potentially allow local users to obtain sensitive information, which could lead to data breaches.

5

Is CVE-2019-11599 specific to certain Linux distributions?

CVE-2019-11599 primarily affects Red Hat and Debian distributions but may also impact other Linux distributions using the vulnerable kernel versions.

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