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Gentoo: 202107-30 High Severity: Xen Privilege Escalation Threats

gentoo
Calendar Grey July 11, 2021
Dist Gentoo Esm H88
Several weaknesses identified in Xen. Users recommended to update to address critical concerns. Find out more for specifics.
Multiple vulnerabilities have been found in Xen, the worst of which could result in privilege escalation.

Summary

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

Topics%20covered

Topics Covered

security advisory high severity gentoo privilege escalation multiple threats xen

Resolution

All Xen 4.14.x users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.14.2-r1"
All Xen 4.15.x users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.15.0-r1"

References

[ 1 ] CVE-2020-29479 https://nvd.nist.gov/vuln/detail/CVE-2020-29479 [ 2 ] CVE-2020-29486 https://nvd.nist.gov/vuln/detail/CVE-2020-29486 [ 3 ] CVE-2020-29487 https://nvd.nist.gov/vuln/detail/CVE-2020-29487 [ 4 ] CVE-2020-29566 https://nvd.nist.gov/vuln/detail/CVE-2020-29566 [ 5 ] CVE-2020-29567 https://nvd.nist.gov/vuln/detail/CVE-2020-29567 [ 6 ] CVE-2020-29568 https://nvd.nist.gov/vuln/detail/CVE-2020-29568 [ 7 ] CVE-2020-29569 https://nvd.nist.gov/vuln/detail/CVE-2020-29569 [ 8 ] CVE-2020-29570 https://nvd.nist.gov/vuln/detail/CVE-2020-29570 [ 9 ] CVE-2020-29571 https://nvd.nist.gov/vuln/detail/CVE-2020-29571 [ 10 ] CVE-2021-0089 https://nvd.nist.gov/vuln/detail/CVE-2021-0089 [ 11 ] CVE-2021-26313 https://nvd.nist.gov/vuln/detail/CVE-2021-26313 [ 12 ] CVE-2021-28687 https://nvd.nist.gov/vuln/detail/CVE-2021-28687 [ 13 ] CVE-2021-28690 https://nvd.nist.gov/vuln/detail/CVE-2021-2869...

Read the Full Advisory

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202107-30
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Concerns

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

Severity: High
Title: Xen: Multiple vulnerabilities
Date: July 12, 2021
Bugs: #760144, #766474, #783456, #795054
ID: 202107-30

Topics%20covered

Topics Covered

security advisory high severity gentoo privilege escalation multiple threats xen

Synopsis

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

Background

Xen is a bare-metal hypervisor.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-emulation/xen < 4.15.0-r1 >= 4.14.2-r1 >= 4.15.0-r1

Impact

===== Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

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