Executive Summary

Summary
Title Xen: Multiple vulnerabilities
Informations
Name GLSA-202005-08 First vendor Publication 2020-05-14
Vendor Gentoo Last vendor Modification 2020-05-14
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Overall CVSS Score 8.8
Base Score 8.8 Environmental Score 8.8
impact SubScore 6 Temporal Score 8.8
Exploitabality Sub Score 2
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:M/Au:N/C:C/I:C/A:C)
Cvss Base Score 6.9 Attack Range Local
Cvss Impact Score 10 Attack Complexity Medium
Cvss Expoit Score 3.4 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Multiple vulnerabilities have been found in Xen, the worst of which could allow privilege escalation.

Background

Xen is a bare-metal hypervisor.

Description

Multiple vulnerabilities have been discovered in Xen. Please review the CVE identifiers referenced below for details.

Impact

Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

All Xen users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/xen-4.12.2-r2"

References

[ 1 ] CVE-2020-11739 : https://nvd.nist.gov/vuln/detail/CVE-2020-11739
[ 2 ] CVE-2020-11740 : https://nvd.nist.gov/vuln/detail/CVE-2020-11740
[ 3 ] CVE-2020-11741 : https://nvd.nist.gov/vuln/detail/CVE-2020-11741
[ 4 ] CVE-2020-11742 : https://nvd.nist.gov/vuln/detail/CVE-2020-11742
[ 5 ] CVE-2020-11743 : https://nvd.nist.gov/vuln/detail/CVE-2020-11743

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/202005-08

Original Source

Url : http://security.gentoo.org/glsa/glsa-202005-08.xml

CWE : Common Weakness Enumeration

% Id Name
33 % CWE-755 Improper Handling of Exceptional Conditions
33 % CWE-200 Information Exposure
33 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 18
Os 1
Os 198

Alert History

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0
1
Date Informations
2020-05-23 13:03:44
  • Multiple Updates
2020-05-15 00:17:31
  • First insertion