CVE-2019-14835 Detail

Current Description

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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Nist CVSS score does not match with CNA score
CNA:  Red Hat, Inc.
Base Score:  7.2 HIGH
Vector:  CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en
http://www.openwall.com/lists/oss-security/2019/09/24/1
http://www.openwall.com/lists/oss-security/2019/10/03/1
http://www.openwall.com/lists/oss-security/2019/10/09/3
http://www.openwall.com/lists/oss-security/2019/10/09/7
https://access.redhat.com/errata/RHBA-2019:2824
https://access.redhat.com/errata/RHSA-2019:2827
https://access.redhat.com/errata/RHSA-2019:2828
https://access.redhat.com/errata/RHSA-2019:2829
https://access.redhat.com/errata/RHSA-2019:2830
https://access.redhat.com/errata/RHSA-2019:2854
https://access.redhat.com/errata/RHSA-2019:2862
https://access.redhat.com/errata/RHSA-2019:2863
https://access.redhat.com/errata/RHSA-2019:2864
https://access.redhat.com/errata/RHSA-2019:2865
https://access.redhat.com/errata/RHSA-2019:2866
https://access.redhat.com/errata/RHSA-2019:2867
https://access.redhat.com/errata/RHSA-2019:2869
https://access.redhat.com/errata/RHSA-2019:2889
https://access.redhat.com/errata/RHSA-2019:2899
https://access.redhat.com/errata/RHSA-2019:2900
https://access.redhat.com/errata/RHSA-2019:2901
https://access.redhat.com/errata/RHSA-2019:2924
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14835 Issue Tracking  Patch  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KQFY6JYFIQ2VFQ7QCSXPWTUL5ZDNCJL5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/
https://seclists.org/bugtraq/2019/Nov/11
https://seclists.org/bugtraq/2019/Sep/41
https://security.netapp.com/advisory/ntap-20191031-0005/
https://usn.ubuntu.com/4135-1/
https://usn.ubuntu.com/4135-2/ Third Party Advisory 
https://www.debian.org/security/2019/dsa-4531
https://www.openwall.com/lists/oss-security/2019/09/17/1 Exploit  Mailing List  Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') cwe source acceptance level NIST   Reference acceptance level Red Hat, Inc.  

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Change History

29 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-14835
NVD Published Date:
09/17/2019
NVD Last Modified:
09/19/2019
Source:
MITRE