CVE-2019-14835

 

Published at: - 17-09-2019 06:15

Last modified: - 26-10-2022 02:02

Total changes: - 4

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

 

Verification logic

 

Reference

• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14835
• https://www.openwall.com/lists/oss-security/2019/09/17/1
• USN-4135-2-Third Party Advisory
• FEDORA-2019-e3010166bd-Third Party Advisory
• RHSA-2019:2828-Third Party Advisory
• RHSA-2019:2827-Third Party Advisory
• RHSA-2019:2830-Third Party Advisory
• RHSA-2019:2829-Third Party Advisory
• RHSA-2019:2854-Third Party Advisory
• RHSA-2019:2863-Third Party Advisory
• RHSA-2019:2862-Third Party Advisory
• RHSA-2019:2865-Third Party Advisory
• RHSA-2019:2864-Third Party Advisory
• RHSA-2019:2866-Third Party Advisory
• RHSA-2019:2867-Third Party Advisory
• RHSA-2019:2869-Third Party Advisory
• http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
• [oss-security] 20190924 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow-Mailing List
• RHSA-2019:2889-Third Party Advisory
• openSUSE-SU-2019:2173-Mailing List, Third Party Advisory
• openSUSE-SU-2019:2181-Mailing List, Third Party Advisory
• 20190925 [SECURITY] [DSA 4531-1] linux security update-Issue Tracking, Mailing List, Third Party Advisory
• DSA-4531-Third Party Advisory
• [debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security update-Mailing List, Third Party Advisory
• RHSA-2019:2900-Third Party Advisory
• RHSA-2019:2901-Third Party Advisory
• RHSA-2019:2899-Third Party Advisory
• RHSA-2019:2924-Third Party Advisory
• USN-4135-1-Third Party Advisory
• [debian-lts-announce] 20191001 [SECURITY] [DLA 1940-1] linux-4.9 security update-Mailing List, Third Party Advisory
• FEDORA-2019-a570a92d5a-Third Party Advisory
• [oss-security] 20191003 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow-Mailing List, Third Party Advisory
• [oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow-Mailing List, Third Party Advisory
• [oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow-Mailing List, Third Party Advisory
• RHBA-2019:2824-Third Party Advisory
• http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
• https://security.netapp.com/advisory/ntap-20191031-0005/
• 20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)-Issue Tracking, Mailing List, Third Party Advisory
• 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

 

Keywords

NVD

 

CVE-2019-14835

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures