Race Condition Affecting xen package, versions <4.7.0-r5
Snyk CVSS
Attack Complexity
High
Confidentiality
High
Integrity
High
Threat Intelligence
EPSS
0.07% (30th
percentile)
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Test your applications- Snyk ID SNYK-ALPINE314-XEN-1308583
- published 21 Jul 2020
- disclosed 7 Oct 2016
Introduced: 7 Oct 2016
CVE-2016-7777 Open this link in a new tabHow to fix?
Upgrade Alpine:3.14
xen
to version 4.7.0-r5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xen
package and not the xen
package as distributed by Alpine
.
See How to fix?
for Alpine:3.14
relevant fixed versions and status.
Xen 4.7.x and earlier does not properly honor CR0.TS and CR0.EM, which allows local x86 HVM guest OS users to read or modify FPU, MMX, or XMM register state information belonging to arbitrary tasks on the guest by modifying an instruction while the hypervisor is preparing to emulate it.