FEDORA-2018-0746dac335

security update in Fedora 26 for xen

Status: stable 2 years ago

update Xen page-table isolation (XPTI) mitigation and add Branch Target Injection (BTI) mitigation for XSA-254 DoS via non-preemptable L3/L4 pagetable freeing [XSA-252] (#1549568) grant table v2 -> v1 transition may crash Xen [XSA-255] (#1549570) x86 PVH guest without LAPIC may DoS the host [XSA-256] (#1549572)

How to install

sudo dnf upgrade --advisory=FEDORA-2018-0746dac335

Comments 8

This update has been submitted for testing by myoung.

This update has been pushed to testing.

works for me in a VM

karma: +1

Works

karma: +1

This update has reached 14 days in testing and can be pushed to stable now if the maintainer wishes

This update has been submitted for batched by myoung.

This update has been submitted for stable by bodhi.

This update has been pushed to stable.

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Content Type
RPM
Status
stable
Test Gating
Submitted by
Update Type
security
Update Severity
unspecified
Karma
+2
stable threshold: 3
unstable threshold: -3
Autopush (karma)
Enabled
Autopush (time)
Disabled
Dates
submitted 2 years ago
in testing 2 years ago
in stable 2 years ago

Related Bugs 6

00 #1544453 CVE-2018-7542 xsa256 xen: x86 PVH guest without LAPIC may DoS the host (XSA-256)
00 #1544456 CVE-2018-7540 xsa252 xen: DoS via non-preemptable L3/L4 pagetable freeing (XSA-252)
00 #1544459 CVE-2018-7541 xsa255 xen: grant table v2 -> v1 transition may crash Xen (XSA-255)
00 #1549568 CVE-2018-7540 xen: xsa252 xen: DoS via non-preemptable L3/L4 pagetable freeing (XSA-252) [fedora-all]
00 #1549570 CVE-2018-7541 xen: xsa255 xen: grant table v2 -> v1 transition may crash Xen (XSA-255) [fedora-all]
00 #1549572 CVE-2018-7542 xen: xsa256 xen: x86 PVH guest without LAPIC may DoS the host (XSA-256) [fedora-all]

Automated Test Results