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SUSE: 2022:3947-1 Importance: Xen Denial Of Service Threats Fixed

suse
Calendar Grey November 11, 2022
Dist Suse Esm H88
A recent SUSE security patch tackles 20 vulnerabilities within xen. Critical remedy for multiple serious threats. System reboot necessary after application.
An update that fixes 20 vulnerabilities is now available

Summary

This update for xen fixes the following issues: - CVE-2022-33746: Fixed DoS due to excessively long P2M pool freeing (bsc#1203806) - CVE-2022-33748: Fixed DoS due to race in locking (bsc#1203807) - CVE-2022-42311, CVE-2022-42312, CVE-2022-42313, CVE-2022-42314, CVE-2022-42315, CVE-2022-42316, CVE-2022-42317, CVE-2022-42318: xen: Xenstore: Guests can let xenstored run out of memory (bsc#1204482) - CVE-2022-42309: xen: Xenstore: Guests can crash xenstored (bsc#1204485) - CVE-2022-42310: xen: Xenstore: Guests can create orphaned Xenstore nodes (bsc#1204487) - CVE-2022-42319: xen: Xenstore: Guests can cause Xenstore to not free temporary memory (bsc#1204488) - CVE-2022-42320: xen: Xenstore: Guests can get access to Xenstore nodes of deleted domains (bsc#1204489)

Topics%20covered

Topics Covered

security advisory denial of service software update threat resolution SUSE Linux system reboot xen

References

#1027519 #1193923 #1203806 #1203807 #1204482

#1204485 #1204487 #1204488 #1204489 #1204490

#1204494 #1204496

Cross- CVE-2022-33746 CVE-2022-33747 CVE-2022-33748

CVE-2022-42309 CVE-2022-42310 CVE-2022-42311

CVE-2022-42312 CVE-2022-42313 CVE-2022-42314

CVE-2022-42315 CVE-2022-42316 CVE-2022-42317

CVE-2022-42318 CVE-2022-42319 CVE-2022-42320

CVE-2022-42321 CVE-2022-42322 CVE-2022-42323

CVE-2022-42325 CVE-2022-42326

CVSS scores:

CVE-2022-33746 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

CVE-2022-33746 (SUSE): 5.3 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H

CVE-2022-33747 (NVD) : 3.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

CVE-2022-33748 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:3947-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service software update threat resolution SUSE Linux system reboot xen

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