var-202004-0462
Vulnerability from variot
An issue was discovered in xenoprof in Xen through 4.13.x, allowing guest OS users (without active profiling) to obtain sensitive information about other guests. Unprivileged guests can request to map xenoprof buffers, even if profiling has not been enabled for those guests. These buffers were not scrubbed. Xen There is an information leakage vulnerability in.Information may be obtained. Xen is an open source virtual machine monitor product from the University of Cambridge. The product enables different and incompatible operating systems to run on the same computer and supports migration during runtime to ensure normal operation and avoid downtime. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202005-08
https://security.gentoo.org/
Severity: Normal Title: Xen: Multiple vulnerabilities Date: May 14, 2020 Bugs: #717446 ID: 202005-08
Synopsis
Multiple vulnerabilities have been found in Xen, the worst of which could allow privilege escalation.
Background
Xen is a bare-metal hypervisor.
Affected packages
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/xen < 4.12.2-r2 >= 4.12.2-r2 2 app-emulation/xen-tools < 4.12.2-r2 >= 4.12.2-r2 ------------------------------------------------------------------- 2 affected packages
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
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.
License
Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5 .
For the stable distribution (buster), these problems have been fixed in version 4.11.4+24-gddaaccbbab-1~deb10u1.
We recommend that you upgrade your xen packages.
For the detailed security status of xen please refer to its security tracker page at: https://security-tracker.debian.org/tracker/xen
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----
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Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.