CVE-2019-14835

Exp

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.

Published: 2019-09-17 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-14835 is rated High Exploit Risk (62.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.63%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2019-14835

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2019-14835

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.07% 0.63% +0.56%
2 2026-03-29 0.15% 0.07% -0.08%
3 2026-03-19 — 0.15% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-14835

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
7.2 3.0 HIGH
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 0.6 6.0 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-2019-14835

OS Trackers for CVE-2019-14835

vendor priority summary link
debian not yet assigned CVE-2019-14835 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2019-14835
redhat high — https://access.redhat.com/security/cve/CVE-2019-14835
suse medium CVE-2019-14835 severity moderate: SUSE including 389 source package names (bpftool-3.10.0-1062.1.2.el7, bpftool-4.18.0-80.11.2.el8_0, …), 843 product×package rows across 90 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (90 product lines)): Fixed 841, Known Not Affected 2. https://www.suse.com/security/cve/CVE-2019-14835/
ubuntu high CVE-2019-14835 high priority: Ubuntu including 108 source packages (linux, linux-aws, …), 1088 status rows across 12 suites (bionic, disco, eoan, focal, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 763, not-affected 164, released 152, ignored 9. https://ubuntu.com/security/CVE-2019-14835

Affected software / configurations for CVE-2019-14835

Vendor Product Version Raw CPE
linux linux_kernel >= 2.6.34, < 3.16.74 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.4, < 4.4.193 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.9, < 4.9.193 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.14, < 4.14.144 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.19, < 4.19.73 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.2, < 5.2.15 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 5.3 cpe:2.3:o:linux:linux_kernel:5.3:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 18.04 cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 19.04 cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
debian debian_linux 10.0 cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
fedoraproject fedora 29 cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
fedoraproject fedora 30 cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
opensuse leap 15.0 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
opensuse leap 15.1 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
netapp aff_a700s_firmware — cpe:2.3:o:netapp:aff_a700s_firmware:-:*:*:*:*:*:*:*
netapp h410c_firmware — cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
netapp h610s_firmware — cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*
netapp h300s_firmware — cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
netapp h500s_firmware — cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
netapp h700s_firmware — cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
netapp h300e_firmware — cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
netapp h500e_firmware — cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
netapp h700e_firmware — cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
netapp h410s_firmware — cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
netapp data_availability_services — cpe:2.3:a:netapp:data_availability_services:-:*:*:*:*:*:*:*
netapp hci_management_node — cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
netapp service_processor — cpe:2.3:a:netapp:service_processor:-:*:*:*:*:*:*:*
netapp solidfire — cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
netapp steelstore_cloud_integrated_storage — cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
redhat openshift_container_platform 3.11 cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
redhat enterprise_linux 8.0 cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_eus 7.5 cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_eus 7.6 cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_eus 7.7 cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_for_real_time 7 cpe:2.3:o:redhat:enterprise_linux_for_real_time:7:*:*:*:*:*:*:*
redhat enterprise_linux_for_real_time 8 cpe:2.3:o:redhat:enterprise_linux_for_real_time:8:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.6 cpe:2.3:o:redhat:enterprise_linux_server:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 6.5 cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 6.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
redhat virtualization 4.0 cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
redhat virtualization_host 4.0 cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*
huawei imanager_neteco v600r009c00 cpe:2.3:a:huawei:imanager_neteco:v600r009c00:*:*:*:*:*:*:*
huawei imanager_neteco v600r009c10spc200 cpe:2.3:a:huawei:imanager_neteco:v600r009c10spc200:*:*:*:*:*:*:*
huawei imanager_neteco_6000 v600r008c10spc300 cpe:2.3:a:huawei:imanager_neteco_6000:v600r008c10spc300:*:*:*:*:*:*:*
huawei imanager_neteco_6000 v600r008c20 cpe:2.3:a:huawei:imanager_neteco_6000:v600r008c20:*:*:*:*:*:*:*
huawei manageone 6.5.0 cpe:2.3:a:huawei:manageone:6.5.0:*:*:*:*:*:*:*
huawei manageone 6.5.0.spc100.b210 cpe:2.3:a:huawei:manageone:6.5.0.spc100.b210:*:*:*:*:*:*:*
huawei manageone 6.5.1rc1.b060 cpe:2.3:a:huawei:manageone:6.5.1rc1.b060:*:*:*:*:*:*:*
huawei manageone 6.5.1rc1.b080 cpe:2.3:a:huawei:manageone:6.5.1rc1.b080:*:*:*:*:*:*:*
huawei manageone 6.5.rc2.b050 cpe:2.3:a:huawei:manageone:6.5.rc2.b050:*:*:*:*:*:*:*

References for CVE-2019-14835

URL Tags
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html Mailing List Third Party Advisory
http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html Third Party Advisory VDB Entry
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html Third Party Advisory VDB Entry
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/09/24/1 Mailing List
http://www.openwall.com/lists/oss-security/2019/10/03/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/10/09/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/10/09/7 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHBA-2019:2824 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2827 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2828 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2829 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2830 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2854 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2862 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2863 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2864 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2865 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2866 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2867 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2869 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2889 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2899 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2900 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2901 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2924 Third Party Advisory
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 Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQFY6JYFIQ2VFQ7QCSXPWTUL5ZDNCJL5/ Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/ Mailing List
https://seclists.org/bugtraq/2019/Nov/11 Issue Tracking Mailing List Third Party Advisory
https://seclists.org/bugtraq/2019/Sep/41 Issue Tracking Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20191031-0005/ Third Party Advisory
https://usn.ubuntu.com/4135-1/ Third Party Advisory
https://usn.ubuntu.com/4135-2/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4531 Third Party Advisory
https://www.openwall.com/lists/oss-security/2019/09/17/1 Exploit Mailing List Patch Third Party Advisory
cvelogic Threat Intelligence