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SUSE Linux 12-SP2 Critical Update: Multiple Xen Security Flaws

suse
Calendar Grey November 17, 2022
Dist Suse Esm H88
Important security patch for SUSE: addresses 17 vulnerabilities in Xen, mitigating various attack pathways and weaknesses.
An update that fixes 17 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-2021-28689: Fixed speculative vulnerabilities with bare (non-shim) 32-bit PV guests (bsc#1185104). - 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-2022-42320: xen: Xenstore: Guests can get access to Xenstore nodes of deleted domains (bsc#1204489)

Topics%20covered

Topics Covered

security advisory security issue update critical DoS SUSE xen

References

#1185104 #1203806 #1203807 #1204482 #1204485

#1204487 #1204489 #1204490 #1204494

Cross- CVE-2021-28689 CVE-2022-33746 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-2022-42320 CVE-2022-42321

CVE-2022-42322 CVE-2022-42323

CVSS scores:

CVE-2021-28689 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVE-2021-28689 (SUSE): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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-2022-33748 (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-2022:4051-1
Rating: important

Topics%20covered

Topics Covered

security advisory security issue update critical DoS SUSE xen

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