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SUSE: 2022:2158-1 Important: Denial of Service Fixes for xen

suse
Calendar Grey June 23, 2022
Dist Suse Esm H88
Critical SUSE revision resolves several security flaws in xen, accompanied by comprehensive guidance on applying patches and evaluating severity levels.
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-2022-26362: Fixed race condition in typeref acquisition (bsc#1199965) - CVE-2022-26363, CVE-2022-26364: Fixed insufficient care with non-coherent mappings (bsc#1199966)

Topics%20covered

Topics Covered

security advisory denial of service update patch important suse xen

References

#1197423 #1197425 #1197426 #1199965 #1199966

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

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

CVE-2022-26362 CVE-2022-26363 CVE-2022-26364

CVSS scores:

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

CVE-2022-26356 (SUSE): 6.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

CVE-2022-26357 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-26357 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

CVE-2022-26358 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE-2022-26358 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

CVE-2022-26359 (NVD) : 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2022:2158-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service update patch important suse xen

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