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Critical Denial Of Service Vulnerabilities in SUSE Linux Enterprise 15-SP2

suse
Calendar Grey April 22, 2022
Dist Suse Esm H88
Keep informed about vital SUSE Security Enhancements for xen that fix numerous vulnerabilities impacting your infrastructures.
An update that fixes 9 vulnerabilities is now available

Summary

This update for xen fixes the following issues: - CVE-2022-26356: Fixed potential race conditions in dirty memory tracking that could cause a denial of service in the host (bsc#1197423). - CVE-2022-26357: Fixed a potential race condition in memory cleanup for hosts using VT-d IOMMU hardware, which could lead to a denial of service in the host (bsc#1197425). - CVE-2022-26358,CVE-2022-26359,CVE-2022-26360,CVE-2022-26361: Fixed various memory corruption issues for hosts using VT-d or AMD-Vi IOMMU hardware. These could be leveraged by an attacker to cause a denial of service in the host (bsc#1197426). - CVE-2022-0001, CVE-2022-0002, CVE-2021-26401: Added BHB speculation issue mitigations (bsc#1196915).

References

#1194267 #1196915 #1197423 #1197425 #1197426

Cross- CVE-2021-26401 CVE-2022-0001 CVE-2022-0002

CVE-2022-26356 CVE-2022-26357 CVE-2022-26358

CVE-2022-26359 CVE-2022-26360 CVE-2022-26361

CVSS scores:

CVE-2021-26401 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2021-26401 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2022-0001 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2022-0001 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2022-0002 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2022-0002 (SUSE): 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2022-26356 (NVD) : 5.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H

Severity
important
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Critical

Announcement ID: SUSE-SU-2022:1300-1
Rating: important

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