svn commit: r548761 - head/security/vuxml
Philip Paeps
philip at FreeBSD.org
Wed Sep 16 06:44:26 UTC 2020
Author: philip
Date: Wed Sep 16 06:44:24 2020
New Revision: 548761
URL: https://svnweb.freebsd.org/changeset/ports/548761
Log:
security/vuxml: add FreeBSD SA-20:28.bhyve_vmcs
Modified:
head/security/vuxml/vuln.xml
Modified: head/security/vuxml/vuln.xml
==============================================================================
--- head/security/vuxml/vuln.xml Wed Sep 16 06:44:19 2020 (r548760)
+++ head/security/vuxml/vuln.xml Wed Sep 16 06:44:24 2020 (r548761)
@@ -58,6 +58,40 @@ Notes:
* Do not forget port variants (linux-f10-libxml2, libxml2, etc.)
-->
<vuxml xmlns="http://www.vuxml.org/apps/vuxml-1">
+ <vuln vid="2c5b9cd7-f7e6-11ea-88f8-901b0ef719ab">
+ <topic>FreeBSD -- bhyve privilege escalation via VMCS access</topic>
+ <affects>
+ <package>
+ <name>FreeBSD-kernel</name>
+ <range><ge>12.1</ge><lt>12.1_10</lt></range>
+ <range><ge>11.4</ge><lt>11.4_4</lt></range>
+ <range><ge>11.3</ge><lt>11.3_14</lt></range>
+ </package>
+ </affects>
+ <description>
+ <body xmlns="http://www.w3.org/1999/xhtml">
+ <h1>Problem Description:</h1>
+ <p>AMD and Intel CPUs support hardware virtualization using specialized data
+ structures that control various aspects of guest operation. These are the
+ Virtual Machine Control Structure (VMCS) on Intel CPUs, and the Virtual
+ Machine Control Block (VMCB) on AMD CPUs. Insufficient access controls allow
+ root users, including those running in a jail, to change these data
+ structures.</p>
+ <h1>Impact:</h1>
+ <p>An attacker with host root access (including to a jailed bhyve instance) can
+ use this vulnerability to achieve kernel code execution.</p>
+ </body>
+ </description>
+ <references>
+ <cvename>CVE-2020-24718</cvename>
+ <freebsdsa>SA-20:28.bhyve_vmcs</freebsdsa>
+ </references>
+ <dates>
+ <discovery>2020-09-15</discovery>
+ <entry>2020-09-16</entry>
+ </dates>
+ </vuln>
+
<vuln vid="bb53af7b-f7e4-11ea-88f8-901b0ef719ab">
<topic>FreeBSD -- ure device driver susceptible to packet-in-packet attack</topic>
<affects>
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