Upstream information

CVE-2021-3750 at MITRE

Description

A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be written to the controller's registers and trigger undesirable actions (such as reset) while the device is still transferring packets. This can ultimately lead to a use-after-free issue. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or potentially execute arbitrary code within the context of the QEMU process on the host. This flaw affects QEMU versions before 7.0.0.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.6
Vector AV:L/AC:L/Au:N/C:P/I:P/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 8.2 7.5
Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Access Vector Local Local
Access Complexity Low High
Privileges Required High High
User Interaction None None
Scope Changed Changed
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entries: 1190011 [NEW], 1190015 [NEW], 1193880 [NEW]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 qemu Affected
SUSE CaaS Platform 4.0 qemu Affected
SUSE CaaS Platform 4.5 qemu Affected
SUSE Enterprise Storage 6 qemu Affected
SUSE Enterprise Storage 7 qemu Affected
SUSE Linux Enterprise Desktop 15 SP2 qemu Affected
SUSE Linux Enterprise Desktop 15 SP3 qemu Affected
SUSE Linux Enterprise Desktop 15 SP4 qemu Already fixed
SUSE Linux Enterprise High Performance Computing 12 SP5 qemu Affected
SUSE Linux Enterprise High Performance Computing 15 LTSS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 ESPOS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP3 qemu Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 qemu Already fixed
SUSE Linux Enterprise Micro 5.0 qemu Affected
SUSE Linux Enterprise Micro 5.1 qemu Affected
SUSE Linux Enterprise Micro 5.2 qemu Affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 qemu Affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 qemu Affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 qemu Already fixed
SUSE Linux Enterprise Module for Server Applications 15 SP2 qemu Affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 qemu Affected
SUSE Linux Enterprise Module for Server Applications 15 SP4 qemu Already fixed
SUSE Linux Enterprise Point of Service 11 SP3 kvm Affected
SUSE Linux Enterprise Point of Service 11 SP3 qemu Not affected
SUSE Linux Enterprise Real Time 15 SP2 qemu Affected
SUSE Linux Enterprise Server 11 SP1 kvm Not affected
SUSE Linux Enterprise Server 11 SP3 kvm Affected
SUSE Linux Enterprise Server 11 SP4 LTSS kvm Unsupported
SUSE Linux Enterprise Server 12 SP2 BCL qemu Affected
SUSE Linux Enterprise Server 12 SP3 BCL qemu Affected
SUSE Linux Enterprise Server 12 SP3 ESPOS qemu Affected
SUSE Linux Enterprise Server 12 SP3 LTSS qemu Affected
SUSE Linux Enterprise Server 12 SP4 ESPOS qemu Affected
SUSE Linux Enterprise Server 12 SP4 LTSS qemu Affected
SUSE Linux Enterprise Server 12 SP5 qemu Affected
SUSE Linux Enterprise Server 15 ESPOS qemu Affected
SUSE Linux Enterprise Server 15 LTSS qemu Affected
SUSE Linux Enterprise Server 15 SP1 LTSS qemu Affected
SUSE Linux Enterprise Server 15 SP2 qemu Affected
SUSE Linux Enterprise Server 15 SP2 LTSS qemu Affected
SUSE Linux Enterprise Server 15 SP3 qemu Affected
SUSE Linux Enterprise Server 15 SP4 qemu Already fixed
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 qemu Affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 qemu Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 qemu Already fixed
SUSE Linux Enterprise Storage 7 qemu Affected
SUSE Linux Enterprise Storage 7.1 qemu Affected
SUSE Manager Proxy 4.0 qemu Unsupported
SUSE Manager Proxy 4.1 qemu Affected
SUSE Manager Proxy 4.2 qemu Affected
SUSE Manager Proxy 4.3 qemu Already fixed
SUSE Manager Retail Branch Server 4.0 qemu Unsupported
SUSE Manager Retail Branch Server 4.1 qemu Affected
SUSE Manager Retail Branch Server 4.2 qemu Affected
SUSE Manager Retail Branch Server 4.3 qemu Already fixed
SUSE Manager Server 4.0 qemu Unsupported
SUSE Manager Server 4.1 qemu Affected
SUSE Manager Server 4.2 qemu Affected
SUSE Manager Server 4.3 qemu Already fixed
SUSE OpenStack Cloud 8 qemu Affected
SUSE OpenStack Cloud 9 qemu Affected
SUSE OpenStack Cloud Crowbar 8 qemu Affected
SUSE OpenStack Cloud Crowbar 9 qemu Affected
suse/sles/15.2/virt-launcher:0.38.1
suse/sles/15.3/libguestfs-tools:0.45.0
suse/sles/15.3/virt-launcher:0.45.0
qemuAffected
suse/sles/15.4/libguestfs-tools:0.49.0
suse/sles/15.4/virt-launcher:0.49.0
qemuAlready fixed