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CVE-2019-14835

HIGH
7.8
CVSS Score
Published: September 17, 2019 at 03:09 PM UTC
Updated: June 17, 2026 at 02:19 AM UTC
45 products affected across 9 vendorsLinux KernelDebian LinuxFedora

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Severity
HIGH7.8
Exploit prediction
EPSS 0.6%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ubuntu Linux· Canonicalrubygems
95%
12.0414.0416.0418.0419.04
Debian Linux· Debiandrupal
95%
10.08.09.0
Fedora· Fedora Projectrpm
95%
2930
Imanager Neteco· Huawei
95%
v600r009c00v600r009c10spc200
iManager NetEco 6000· Huawei
95%
v600r008c10spc300v600r008c20
ManageOne· Huawei
95%
6.5.06.5.0.spc100.b2106.5.1rc1.b0606.5.1rc1.b0806.5.rc2.b050
Linux Kernel· Linux
95%
2.6.34 ≤ v < 3.16.744.14 ≤ v < 4.14.1444.19 ≤ v < 4.19.734.4 ≤ v < 4.4.1934.9 ≤ v < 4.9.1935.2 ≤ v < 5.2.155.3
Affected range stops below 3.16.74, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.14.144, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.73, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.193, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.193, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.2.15, so it looks safe — our inference, not a vendor statement
Aff A700S Firmware· NetApp
95%
All versions
netapp-aff-a700s (same device)
Data Availability Services· NetApp
95%
All versions
H300E Firmware· NetAppdrupal
95%
All versions
netapp-h300e (same device)

References (40)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/154572/Kernel-Live-Patch-Security-Notice-LSN-0056-1.html
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
x_refsource_MISCThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en
Mailing Listx_refsource_MLIST
Source: [email protected]
http://www.openwall.com/lists/oss-security/2019/09/24/1
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2019/10/03/1

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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