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Vulnerability Details : CVE-2019-14835

A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, 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.
Publish Date : 2019-09-17 Last Update Date : 2021-06-02
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- CVSS Scores & Vulnerability Types

CVSS Score
7.2
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 120

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2019:2827: kernel security update (Important) oval:com.redhat.rhsa:def:20192827 unix
RHSA-2019:2828: kernel-rt security update (Important) oval:com.redhat.rhsa:def:20192828 unix
RHSA-2019:2829: kernel security update (Important) oval:com.redhat.rhsa:def:20192829 unix
RHSA-2019:2830: kernel-rt security update (Important) oval:com.redhat.rhsa:def:20192830 unix
RHSA-2019:2854: kpatch-patch security update (Important) oval:com.redhat.rhsa:def:20192854 unix
RHSA-2019:2863: kernel security update (Important) oval:com.redhat.rhsa:def:20192863 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2019-14835

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 12.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 16.04 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 18.04 * * * Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 19.04 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 8.0 * * * Version Details Vulnerabilities
7 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
8 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
9 OS Fedoraproject Fedora 29 * * * Version Details Vulnerabilities
10 OS Fedoraproject Fedora 30 * * * Version Details Vulnerabilities
11 Application Huawei Imanager Neteco V600r009c00 * * * Version Details Vulnerabilities
12 Application Huawei Imanager Neteco V600r009c10spc200 * * * Version Details Vulnerabilities
13 Application Huawei Imanager Neteco 6000 V600r008c10spc300 * * * Version Details Vulnerabilities
14 Application Huawei Imanager Neteco 6000 V600r008c20 * * * Version Details Vulnerabilities
15 Application Huawei Manageone 6.5.0 * * * Version Details Vulnerabilities
16 Application Huawei Manageone 6.5.rc2.b050 * * * Version Details Vulnerabilities
17 Application Huawei Manageone 6.5.0.spc100.b210 * * * Version Details Vulnerabilities
18 Application Huawei Manageone 6.5.1rc1.b080 * * * Version Details Vulnerabilities
19 Application Huawei Manageone 6.5.1rc1.b060 * * * Version Details Vulnerabilities
20 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
21 OS Linux Linux Kernel 5.3 * * * Version Details Vulnerabilities
22 Application Netapp Steelstore Cloud Integrated Storage - * * * Version Details Vulnerabilities
23 Application Netapp Data Availability Services - * * * Version Details Vulnerabilities
24 Application Netapp Hci Management Node - * * * Version Details Vulnerabilities
25 Application Netapp Service Processor - * * * Version Details Vulnerabilities
26 Application Netapp Solidfire - * * * Version Details Vulnerabilities
27 OS Opensuse Leap 15.0 * * * Version Details Vulnerabilities
28 OS Opensuse Leap 15.1 * * * Version Details Vulnerabilities
29 OS Redhat Enterprise Linux 8.0 * * * Version Details Vulnerabilities
30 OS Redhat Enterprise Linux Desktop 6.0 * * * Version Details Vulnerabilities
31 OS Redhat Enterprise Linux Desktop 7.0 * * * Version Details Vulnerabilities
32 OS Redhat Enterprise Linux Eus 7.5 * * * Version Details Vulnerabilities
33 OS Redhat Enterprise Linux Eus 7.6 * * * Version Details Vulnerabilities
34 OS Redhat Enterprise Linux Eus 7.7 * * * Version Details Vulnerabilities
35 OS Redhat Enterprise Linux For Real Time 7 * * * Version Details Vulnerabilities
36 OS Redhat Enterprise Linux For Real Time 8 * * * Version Details Vulnerabilities
37 OS Redhat Enterprise Linux Server 6.0 * * * Version Details Vulnerabilities
38 OS Redhat Enterprise Linux Server 7.0 * * * Version Details Vulnerabilities
39 OS Redhat Enterprise Linux Server 7.6 * * * Version Details Vulnerabilities
40 OS Redhat Enterprise Linux Server Aus 6.5 * * * Version Details Vulnerabilities
41 OS Redhat Enterprise Linux Server Aus 6.6 * * * Version Details Vulnerabilities
42 OS Redhat Enterprise Linux Server Aus 7.2 * * * Version Details Vulnerabilities
43 OS Redhat Enterprise Linux Server Aus 7.3 * * * Version Details Vulnerabilities
44 OS Redhat Enterprise Linux Server Aus 7.4 * * * Version Details Vulnerabilities
45 OS Redhat Enterprise Linux Server Aus 7.6 * * * Version Details Vulnerabilities
46 OS Redhat Enterprise Linux Server Aus 7.7 * * * Version Details Vulnerabilities
47 OS Redhat Enterprise Linux Server Tus 7.2 * * * Version Details Vulnerabilities
48 OS Redhat Enterprise Linux Server Tus 7.3 * * * Version Details Vulnerabilities
49 OS Redhat Enterprise Linux Server Tus 7.4 * * * Version Details Vulnerabilities
50 OS Redhat Enterprise Linux Server Tus 7.6 * * * Version Details Vulnerabilities
51 OS Redhat Enterprise Linux Server Tus 7.7 * * * Version Details Vulnerabilities
52 OS Redhat Enterprise Linux Workstation 6.0 * * * Version Details Vulnerabilities
53 OS Redhat Enterprise Linux Workstation 7.0 * * * Version Details Vulnerabilities
54 Application Redhat Openshift Container Platform 3.11 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 5
Debian Debian Linux 3
Fedoraproject Fedora 2
Huawei Imanager Neteco 2
Huawei Imanager Neteco 6000 2
Huawei Manageone 5
Linux Linux Kernel 2
Netapp Steelstore Cloud Integrated Storage 1
Netapp Data Availability Services 1
Netapp Hci Management Node 1
Netapp Service Processor 1
Netapp Solidfire 1
Opensuse Leap 2
Redhat Enterprise Linux 1
Redhat Enterprise Linux Desktop 2
Redhat Enterprise Linux Eus 3
Redhat Enterprise Linux For Real Time 2
Redhat Enterprise Linux Server 3
Redhat Enterprise Linux Server Aus 7
Redhat Enterprise Linux Server Tus 5
Redhat Enterprise Linux Workstation 2
Redhat Openshift Container Platform 1

- References For CVE-2019-14835

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14835 CONFIRM
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
https://seclists.org/bugtraq/2019/Nov/11
BUGTRAQ 20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)
https://security.netapp.com/advisory/ntap-20191031-0005/ CONFIRM
https://access.redhat.com/errata/RHBA-2019:2824
REDHAT RHBA-2019:2824
http://www.openwall.com/lists/oss-security/2019/10/09/3
MLIST [oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow
http://www.openwall.com/lists/oss-security/2019/10/03/1
MLIST [oss-security] 20191003 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
http://www.openwall.com/lists/oss-security/2019/10/09/7
MLIST [oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow
https://seclists.org/bugtraq/2019/Sep/41
BUGTRAQ 20190925 [SECURITY] [DSA 4531-1] linux security update
https://lists.fedoraproject.org/archives/list/[email protected]/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/
FEDORA FEDORA-2019-a570a92d5a
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html
MLIST [debian-lts-announce] 20191001 [SECURITY] [DLA 1940-1] linux-4.9 security update
https://access.redhat.com/errata/RHSA-2019:2899
REDHAT RHSA-2019:2899
https://access.redhat.com/errata/RHSA-2019:2924
REDHAT RHSA-2019:2924
https://usn.ubuntu.com/4135-1/
UBUNTU USN-4135-1
https://access.redhat.com/errata/RHSA-2019:2901
REDHAT RHSA-2019:2901
https://access.redhat.com/errata/RHSA-2019:2869
REDHAT RHSA-2019:2869
http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
https://access.redhat.com/errata/RHSA-2019:2900
REDHAT RHSA-2019:2900
https://www.debian.org/security/2019/dsa-4531
DEBIAN DSA-4531
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
MLIST [debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
SUSE openSUSE-SU-2019:2181
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
SUSE openSUSE-SU-2019:2173
https://access.redhat.com/errata/RHSA-2019:2889
REDHAT RHSA-2019:2889
https://access.redhat.com/errata/RHSA-2019:2866
REDHAT RHSA-2019:2866
https://access.redhat.com/errata/RHSA-2019:2867
REDHAT RHSA-2019:2867
https://access.redhat.com/errata/RHSA-2019:2864
REDHAT RHSA-2019:2864
https://access.redhat.com/errata/RHSA-2019:2865
REDHAT RHSA-2019:2865
https://access.redhat.com/errata/RHSA-2019:2854
REDHAT RHSA-2019:2854
https://access.redhat.com/errata/RHSA-2019:2863
REDHAT RHSA-2019:2863
https://access.redhat.com/errata/RHSA-2019:2862
REDHAT RHSA-2019:2862
https://access.redhat.com/errata/RHSA-2019:2829
REDHAT RHSA-2019:2829
https://access.redhat.com/errata/RHSA-2019:2830
REDHAT RHSA-2019:2830
https://access.redhat.com/errata/RHSA-2019:2827
REDHAT RHSA-2019:2827
https://access.redhat.com/errata/RHSA-2019:2828
REDHAT RHSA-2019:2828
https://usn.ubuntu.com/4135-2/
UBUNTU USN-4135-2
https://lists.fedoraproject.org/archives/list/[email protected]/message/KQFY6JYFIQ2VFQ7QCSXPWTUL5ZDNCJL5/
FEDORA FEDORA-2019-e3010166bd
http://www.openwall.com/lists/oss-security/2019/09/24/1
MLIST [oss-security] 20190924 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow
https://www.openwall.com/lists/oss-security/2019/09/17/1

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0
Vulnerability is valid if product versions listed below are used 0

- Metasploit Modules Related To CVE-2019-14835

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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