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SUSE Linux Enterprise 12-SP2: 2018:2081-1 Important: Xen Security Update

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Calendar Grey July 27, 2018
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The newest security enhancement from SUSE addresses several vulnerabilities in xen across diverse offerings, carrying significant importance. Apply the update today!
An update that solves 5 vulnerabilities and has three fixes is now available

Summary

This update for xen fixes the following issues: Security issues fixed: - CVE-2018-12891: Fix preemption checks bypass in x86 PV MM handling (XSA-264) (bsc#1097521). - CVE-2018-12892: Fix libxl failure to honour readonly flag on HVM emulated SCSI disks (XSA-266) (bsc#1097523). - CVE-2018-12893: Fix #DB exception safety check that could be triggered by a guest (XSA-265) (bsc#1097522). - CVE-2018-11806: Fix heap buffer overflow while reassembling fragmented datagrams (bsc#1096224). - CVE-2018-3665: Fix lazy FP Save/Restore (XSA-267) (bsc#1095242). Bug fixes: - bsc#1027519: Update to Xen 4.7.6 bug fix only release. - bsc#1087289: Xen BUG at sched_credit.c:1663. - bsc#1094725: `virsh blockresize` does not work with Xen qdisks. Patch Instructions:

Topics%20covered

Topics Covered

security advisory important cloud security Xen SUSE Linux Enterprise patch instructions SUSE OpenStack

References

#1027519 #1087289 #1094725 #1095242 #1096224

#1097521 #1097522 #1097523

Cross- CVE-2018-11806 CVE-2018-12891 CVE-2018-12892

CVE-2018-12893 CVE-2018-3665

Affected Products:

SUSE OpenStack Cloud 7

SUSE Linux Enterprise Server for SAP 12-SP2

SUSE Linux Enterprise Server 12-SP2-LTSS

SUSE Enterprise Storage 4

https://www.suse.com/security/cve/CVE-2018-11806.html

https://www.suse.com/security/cve/CVE-2018-12891.html

https://www.suse.com/security/cve/CVE-2018-12892.html

https://www.suse.com/security/cve/CVE-2018-12893.html

https://www.suse.com/security/cve/CVE-2018-3665.html

https://bugzilla.suse.com/1027519

https://bugzilla.suse.com/1087289

https://bugzilla.suse.com/1094725

https://bugzilla.suse.com/1095242

https://bugzilla.suse.com/1096224

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2018:2081-1
Rating: important

Topics%20covered

Topics Covered

security advisory important cloud security Xen SUSE Linux Enterprise patch instructions SUSE OpenStack

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