Upstream information

CVE-2021-4145 at MITRE

Description

A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 4.9
Vector AV:L/AC:L/Au:N/C:N/I:N/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 6.5 5.6
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Attack Vector Local Local
Attack Complexity Low High
Privileges Required Low Low
User Interaction None None
Scope Changed Changed
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1193995 [RESOLVED / FIXED]

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Please note that this evaluation state might be work in progress, incomplete or outdated.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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 qemu Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 qemu Not affected
SUSE Linux Enterprise Micro 5.1 qemu Not affected
SUSE Linux Enterprise Micro 5.2 qemu Not affected
SUSE Linux Enterprise Real Time 15 SP3 qemu Not affected
SUSE Linux Enterprise Server 12 SP5 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 qemu Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS qemu Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS qemu Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 qemu Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 qemu Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP2 qemu Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 qemu Not affected
SUSE Linux Enterprise Server 12 SP2-BCL qemu Not affected
SUSE Linux Enterprise Server 15 SP2 qemu Not affected
SUSE Linux Enterprise Server 15 SP2-LTSS qemu Not affected
SUSE Linux Enterprise Server 15 SP3 qemu Not affected
SUSE Linux Enterprise Server 15 SP3-LTSS qemu Not affected
SUSE Linux Enterprise Server 15-ESPOS qemu Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 qemu Not affected
SUSE Linux Enterprise Server Business Critical Linux 15 SP2 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 15 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 qemu Not affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 qemu Not affected
SUSE CaaS Platform 3.0 qemu Not affected
SUSE CaaS Platform 4.0 qemu Not affected
SUSE CaaS Platform 4.5 qemu Not affected
SUSE Enterprise Storage 6 qemu Not affected
SUSE Enterprise Storage 7 qemu Not affected
SUSE Linux Enterprise Desktop 11 SP4 qemu Not affected
SUSE Linux Enterprise Desktop 12 SP2 qemu Not affected
SUSE Linux Enterprise Desktop 12 SP3 qemu Not affected
SUSE Linux Enterprise Desktop 12 SP4 qemu Not affected
SUSE Linux Enterprise Desktop 15 qemu Not affected
SUSE Linux Enterprise Desktop 15 SP1 qemu Not affected
SUSE Linux Enterprise Desktop 15 SP2 qemu Not affected
SUSE Linux Enterprise Desktop 15 SP3 qemu Not affected
SUSE Linux Enterprise Micro 5.0 qemu Not affected
SUSE Linux Enterprise Module for Basesystem 15 qemu Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 qemu Not affected
SUSE Linux Enterprise Module for Server Applications 15 qemu Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP1 qemu Not affected
SUSE Linux Enterprise Real Time 15 SP2 qemu Not affected
SUSE Linux Enterprise Server 11 SP3 kvm Not affected
SUSE Linux Enterprise Server 11 SP3-LTSS kvm Not affected
SUSE Linux Enterprise Server 11 SP4 kvm Not affected
SUSE Linux Enterprise Server 11 SP4 qemu Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS kvm Not affected
SUSE Linux Enterprise Server 12 SP2 qemu Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS qemu Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS qemu Not affected
SUSE Linux Enterprise Server 12 SP3 qemu Not affected
SUSE Linux Enterprise Server 12 SP3-BCL qemu Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS qemu Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS qemu Not affected
SUSE Linux Enterprise Server 12 SP4 qemu Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS qemu Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS qemu Not affected
SUSE Linux Enterprise Server 15 qemu Not affected
SUSE Linux Enterprise Server 15 SP1 qemu Not affected
SUSE Linux Enterprise Server 15 SP1-BCL qemu Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS qemu Not affected
SUSE Linux Enterprise Server 15 SP2-BCL qemu Not affected
SUSE Linux Enterprise Server 15 SP3-BCL qemu Not affected
SUSE Linux Enterprise Server 15-LTSS qemu Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP4 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 qemu Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 qemu Not affected
SUSE Linux Enterprise Software Development Kit 11 SP4 qemu Not affected
SUSE Manager Proxy 4.0 qemu Not affected
SUSE Manager Proxy 4.1 qemu Not affected
SUSE Manager Proxy 4.2 qemu Not affected
SUSE Manager Retail Branch Server 4.0 qemu Not affected
SUSE Manager Retail Branch Server 4.1 qemu Not affected
SUSE Manager Retail Branch Server 4.2 qemu Not affected
SUSE Manager Server 4.0 qemu Not affected
SUSE Manager Server 4.1 qemu Not affected
SUSE Manager Server 4.2 qemu Not affected
SUSE OpenStack Cloud 7 qemu Not affected
SUSE OpenStack Cloud 8 qemu Not affected
SUSE OpenStack Cloud 9 qemu Not affected
SUSE OpenStack Cloud Crowbar 8 qemu Not affected
SUSE OpenStack Cloud Crowbar 9 qemu Not affected
Container Status
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
qemuNot affected


SUSE Timeline for this CVE

CVE page created: Tue Dec 21 17:00:28 2021
CVE page last modified: Thu Feb 1 01:39:25 2024