high
7.8
CWE
119 120
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-14835: Buffer Overflow

First published: Tue Sep 10 2019(Updated: )

A buffer overflow flaw was found in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<0:2.6.32-754.23.1.el6
0:2.6.32-754.23.1.el6
redhat/kernel<0:2.6.32-431.96.2.el6
0:2.6.32-431.96.2.el6
redhat/kernel<0:2.6.32-504.81.2.el6
0:2.6.32-504.81.2.el6
redhat/kernel-rt<0:3.10.0-1062.1.2.rt56.1025.el7
0:3.10.0-1062.1.2.rt56.1025.el7
redhat/kernel<0:3.10.0-1062.1.2.el7
0:3.10.0-1062.1.2.el7
redhat/kernel-alt<0:4.14.0-115.13.1.el7a
0:4.14.0-115.13.1.el7a
redhat/kernel<0:3.10.0-327.82.1.el7
0:3.10.0-327.82.1.el7
redhat/kernel<0:3.10.0-514.69.1.el7
0:3.10.0-514.69.1.el7
redhat/kernel<0:3.10.0-693.59.1.el7
0:3.10.0-693.59.1.el7
redhat/kernel<0:3.10.0-862.41.2.el7
0:3.10.0-862.41.2.el7
redhat/kernel<0:3.10.0-957.35.2.el7
0:3.10.0-957.35.2.el7
redhat/kernel-rt<0:4.18.0-80.11.2.rt9.157.el8_0
0:4.18.0-80.11.2.rt9.157.el8_0
redhat/kernel<0:4.18.0-80.11.2.el8_0
0:4.18.0-80.11.2.el8_0
redhat/redhat-virtualization-host<0:4.2-20190919.0.el7_6
0:4.2-20190919.0.el7_6
redhat/redhat-virtualization-host<0:4.3.5-20190920.0.el7_7
0:4.3.5-20190920.0.el7_7
Linux Linux kernel>=2.6.34<3.16.74
Linux Linux kernel>=4.4<4.4.193
Linux Linux kernel>=4.9<4.9.193
Linux Linux kernel>=4.14<4.14.144
Linux Linux kernel>=4.19<4.19.73
Linux Linux kernel>=5.2<5.2.15
Linux Linux kernel=5.3
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.04
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Fedoraproject Fedora=29
Fedoraproject Fedora=30
openSUSE Leap=15.0
openSUSE Leap=15.1
Netapp Aff A700s Firmware
NetApp AFF A700s
Netapp H410c Firmware
Netapp H410c
Netapp H610s Firmware
Netapp H610s
Netapp H300s Firmware
Netapp H300s
Netapp H500s Firmware
Netapp H500s
Netapp H700s Firmware
Netapp H700s
Netapp H300e Firmware
Netapp H300e
Netapp H500e Firmware
Netapp H500e
Netapp H700e Firmware
Netapp H700e
Netapp H410s Firmware
Netapp H410s
Netapp Steelstore Cloud Integrated Storage
Netapp Data Availability Services
Netapp Hci Management Node
NetApp Service Processor
Netapp Solidfire
Redhat Openshift Container Platform=3.11
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Desktop=6.0
Redhat Enterprise Linux Desktop=7.0
Redhat Enterprise Linux Eus=7.5
Redhat Enterprise Linux Eus=7.6
Redhat Enterprise Linux Eus=7.7
Redhat Enterprise Linux For Real Time=7
Redhat Enterprise Linux For Real Time=8
Redhat Enterprise Linux Server=6.0
Redhat Enterprise Linux Server=7.0
Redhat Enterprise Linux Server=7.6
Redhat Enterprise Linux Server Aus=6.5
Redhat Enterprise Linux Server Aus=6.6
Redhat Enterprise Linux Server Aus=7.2
Redhat Enterprise Linux Server Aus=7.3
Redhat Enterprise Linux Server Aus=7.4
Redhat Enterprise Linux Server Aus=7.6
Redhat Enterprise Linux Server Aus=7.7
Redhat Enterprise Linux Server Tus=7.2
Redhat Enterprise Linux Server Tus=7.3
Redhat Enterprise Linux Server Tus=7.4
Redhat Enterprise Linux Server Tus=7.6
Redhat Enterprise Linux Server Tus=7.7
Redhat Enterprise Linux Workstation=6.0
Redhat Enterprise Linux Workstation=7.0
Redhat Virtualization=4.0
Redhat Virtualization Host=4.0
Redhat Enterprise Linux=7.0
Huawei Imanager Neteco=v600r009c00
Huawei Imanager Neteco=v600r009c10spc200
Huawei Imanager Neteco 6000=v600r008c10spc300
Huawei Imanager Neteco 6000=v600r008c20
Huawei ManageOne=6.5.0
Huawei ManageOne=6.5.0.spc100.b210
Huawei ManageOne=6.5.1rc1.b060
Huawei ManageOne=6.5.1rc1.b080
Huawei ManageOne=6.5.rc2.b050
All of
Netapp Aff A700s Firmware
NetApp AFF A700s
All of
Netapp H410c Firmware
Netapp H410c
All of
Netapp H610s Firmware
Netapp H610s
All of
Netapp H300s Firmware
Netapp H300s
All of
Netapp H500s Firmware
Netapp H500s
All of
Netapp H700s Firmware
Netapp H700s
All of
Netapp H300e Firmware
Netapp H300e
All of
Netapp H500e Firmware
Netapp H500e
All of
Netapp H700e Firmware
Netapp H700e
All of
Netapp H410s Firmware
Netapp H410s
Netapp Steelstore Cloud Integrated Storage
All of
Any of
Redhat Virtualization=4.0
Redhat Virtualization Host=4.0
Redhat Enterprise Linux=7.0
debian/linux
5.10.223-1
6.1.106-3
6.1.99-1
6.10.9-1

Remedy

For mitigation related information, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/kernel-vhost

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14835

Remedy

https://www.openwall.com/lists/oss-security/2019/09/17/1

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2019-14835?

    CVE-2019-14835 is a buffer overflow vulnerability found in the Linux kernel's vhost functionality.

  • How does CVE-2019-14835 affect Linux?

    CVE-2019-14835 allows privileged guest users to exploit a buffer overflow flaw in the vhost functionality of the Linux kernel.

  • What is the severity of CVE-2019-14835?

    CVE-2019-14835 has a severity level of high.

  • How can I fix CVE-2019-14835?

    To fix CVE-2019-14835, it is recommended to update your Linux kernel to a version that includes the patch for the vulnerability.

  • Where can I find more information about CVE-2019-14835?

    You can find more information about CVE-2019-14835 on the official Red Hat Security Advisory and the Git repository for the Linux kernel.

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