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Alerts This Week
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Alerts This Week
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SUSE 2021:2955-1 Important: Xen Security Issues Including DoS

suse
Calendar Grey September 3, 2021
Scroller Suse
Xen Project has addressed 14 important vulnerabilities in its hypervisor. Follow the patch instructions to secure your systems against potential threats
An update that fixes 14 vulnerabilities is now available

Summary

This update for xen fixes the following issues: Security issues fixed: - CVE-2021-28698: long running loops in grant table handling (XSA-380)(bsc#1189378). - CVE-2021-28697: grant table v2 status pages may remain accessible after de-allocation (XSA-379)(bsc#1189376). - CVE-2021-28694,CVE-2021-28695,CVE-2021-28696: IOMMU page mapping issues on x86 (XSA-378)(bsc#1189373). - CVE-2021-28699: inadequate grant-v2 status frames array bounds check (XSA-382)(bsc#1189380). - CVE-2021-28692: xen: inappropriate x86 IOMMU timeout detection / handling (bsc#1186429) - CVE-2021-28690: xen: x86: TSX Async Abort protections not restored after S3 (bsc#1186434) - CVE-2021-0089: xen: Speculative Code Store Bypass (bsc#1186433) - CVE-2021-20255: Fixed stack overflow via infinite recursion in eepro100

Topics%20covered

Topics Covered

security advisory server important information disclosure SUSE xen cloud

References

#1181254 #1182654 #1186429 #1186433 #1186434

#1187369 #1187376 #1187378 #1189373 #1189376

#1189378 #1189380 #1189882

Cross- CVE-2021-0089 CVE-2021-20255 CVE-2021-28690

CVE-2021-28692 CVE-2021-28694 CVE-2021-28695

CVE-2021-28696 CVE-2021-28697 CVE-2021-28698

CVE-2021-28699 CVE-2021-3308 CVE-2021-3592

CVE-2021-3594 CVE-2021-3595

CVSS scores:

CVE-2021-0089 (NVD) : 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVE-2021-20255 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVE-2021-20255 (SUSE): 3.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L

CVE-2021-28694 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVE-2021-28695 (SUSE): 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
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Critical

Announcement ID: SUSE-SU-2021:2955-1
Rating: important

Topics%20covered

Topics Covered

security advisory server important information disclosure SUSE xen cloud

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