Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 501
Alerts This Week
Warning Icon 1 501

SUSE: 2022:0031-1 Important: Libvirt Deadlock and Segfault Fix

suse
Calendar Grey January 5, 2022
Scroller Suse
Red Hat's recent kernel upgrade addresses several significant vulnerabilities and includes detailed installation guidelines for system administrators.
An update that solves two vulnerabilities and has one errata is now available

Summary

This update for libvirt fixes the following issues: - CVE-2021-4147: libxl: Fix libvirtd deadlocks and segfaults. (bsc#1194041) - CVE-2021-3975: Add missing lock in qemuProcessHandleMonitorEOF. (bsc#1192876) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server for SAP 15: zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-2022-31=1 - SUSE Linux Enterprise Server 15-LTSS: zypper in -t patch SUSE-SLE-Product-SLES-15-2022-31=1 - SUSE Linux Enterprise High Performance Computing 15-LTSS: zypper in -t patch SUSE-SLE-Product-HPC-15-2022-31=1 - SUSE Linux Enterprise High Performance Computing 15-ESPOS:

Topics%20covered

Topics Covered

security advisory patch important SUSE segfault deadlock libvirt

References

#1192876 #1193981 #1194041

Cross- CVE-2021-3975 CVE-2021-4147

CVSS scores:

CVE-2021-3975 (SUSE): 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVE-2021-4147 (SUSE): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Affected Products:

SUSE Linux Enterprise Server for SAP 15

SUSE Linux Enterprise Server 15-LTSS

SUSE Linux Enterprise High Performance Computing 15-LTSS

SUSE Linux Enterprise High Performance Computing 15-ESPOS

https://www.suse.com/security/cve/CVE-2021-3975.html

https://www.suse.com/security/cve/CVE-2021-4147.html

https://bugzilla.suse.com/1192876

https://bugzilla.suse.com/1193981

https://bugzilla.suse.com/1194041

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:0031-1
Rating: important

Topics%20covered

Topics Covered

security advisory patch important SUSE segfault deadlock libvirt

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.