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SUSE Linux Enterprise Server 12-SP5: Important Security Fix for Xen DoS

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Calendar Grey May 3, 2022
Scroller Suse
SUSE's latest security enhancement for xen addresses multiple vulnerabilities, including potential memory leaks and threats of service unavailability. Learn further details!
An update that fixes 6 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).

Topics%20covered

Topics Covered

security advisory moderate denial of service memory corruption SUSE Linux Enterprise Server SUSE Security Update

References

#1197423 #1197425 #1197426

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

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

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

CVE-2022-26359 (SUSE): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Severity
important
Lowest
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Announcement ID: SUSE-SU-2022:1505-1
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate denial of service memory corruption SUSE Linux Enterprise Server SUSE Security Update

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