var-202106-1422
Vulnerability from variot
Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage. plural CPU The product contains a vulnerability related to the leakage of resources to the wrong area.Information may be obtained. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202107-30
https://security.gentoo.org/
Severity: High Title: Xen: Multiple vulnerabilities Date: July 12, 2021 Bugs: #760144, #766474, #783456, #795054 ID: 202107-30
Synopsis
Multiple vulnerabilities have been found in Xen, the worst of which could result in privilege escalation.
Background
Xen is a bare-metal hypervisor.
Affected packages
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Package / Vulnerable / Unaffected
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1 app-emulation/xen < 4.15.0-r1 >= 4.14.2-r1 >= 4.15.0-r1
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 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-2021-28690 [ 14 ] CVE-2021-28691 https://nvd.nist.gov/vuln/detail/CVE-2021-28691 [ 15 ] CVE-2021-28692 https://nvd.nist.gov/vuln/detail/CVE-2021-28692 [ 16 ] CVE-2021-28693 https://nvd.nist.gov/vuln/detail/CVE-2021-28693 [ 17 ] CVE-2021-3308 https://nvd.nist.gov/vuln/detail/CVE-2021-3308
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/202107-30
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 2021 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+107-gef32c7afa2-1.
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/
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"data": "Potential speculative code store bypass in all supported CPU products, in conjunction with software vulnerabilities relating to speculative execution of overwritten instructions, may cause an incorrect speculation and could result in data leakage. plural CPU The product contains a vulnerability related to the leakage of resources to the wrong area.Information may be obtained. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory GLSA 202107-30\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n Title: Xen: Multiple vulnerabilities\n Date: July 12, 2021\n Bugs: #760144, #766474, #783456, #795054\n ID: 202107-30\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in Xen, the worst of which\ncould result in privilege escalation. \n\nBackground\n==========\n\nXen is a bare-metal hypervisor. \n\nAffected packages\n=================\n\n -------------------------------------------------------------------\n Package / Vulnerable / Unaffected\n -------------------------------------------------------------------\n 1 app-emulation/xen \u003c 4.15.0-r1 \u003e= 4.14.2-r1\n \u003e= 4.15.0-r1\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Xen. Please review the\nCVE identifiers referenced below for details. \n\nImpact\n======\n\nPlease review the referenced CVE identifiers for details. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Xen 4.14.x users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=app-emulation/xen-4.14.2-r1\"\n\nAll Xen 4.15.x users should upgrade to the latest version:\n\n # emerge --sync\n # emerge --ask --oneshot --verbose \"\u003e=app-emulation/xen-4.15.0-r1\"\n\nReferences\n==========\n\n[ 1 ] CVE-2020-29479\n https://nvd.nist.gov/vuln/detail/CVE-2020-29479\n[ 2 ] CVE-2020-29486\n https://nvd.nist.gov/vuln/detail/CVE-2020-29486\n[ 3 ] CVE-2020-29487\n https://nvd.nist.gov/vuln/detail/CVE-2020-29487\n[ 4 ] CVE-2020-29566\n https://nvd.nist.gov/vuln/detail/CVE-2020-29566\n[ 5 ] CVE-2020-29567\n https://nvd.nist.gov/vuln/detail/CVE-2020-29567\n[ 6 ] CVE-2020-29568\n https://nvd.nist.gov/vuln/detail/CVE-2020-29568\n[ 7 ] CVE-2020-29569\n https://nvd.nist.gov/vuln/detail/CVE-2020-29569\n[ 8 ] CVE-2020-29570\n https://nvd.nist.gov/vuln/detail/CVE-2020-29570\n[ 9 ] CVE-2020-29571\n https://nvd.nist.gov/vuln/detail/CVE-2020-29571\n[ 10 ] CVE-2021-0089\n https://nvd.nist.gov/vuln/detail/CVE-2021-0089\n[ 11 ] CVE-2021-26313\n https://nvd.nist.gov/vuln/detail/CVE-2021-26313\n[ 12 ] CVE-2021-28687\n https://nvd.nist.gov/vuln/detail/CVE-2021-28687\n[ 13 ] CVE-2021-28690\n https://nvd.nist.gov/vuln/detail/CVE-2021-28690\n[ 14 ] CVE-2021-28691\n https://nvd.nist.gov/vuln/detail/CVE-2021-28691\n[ 15 ] CVE-2021-28692\n https://nvd.nist.gov/vuln/detail/CVE-2021-28692\n[ 16 ] CVE-2021-28693\n https://nvd.nist.gov/vuln/detail/CVE-2021-28693\n[ 17 ] CVE-2021-3308\n https://nvd.nist.gov/vuln/detail/CVE-2021-3308\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/202107-30\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2021 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttps://creativecommons.org/licenses/by-sa/2.5\n\n. \n\nFor the stable distribution (buster), these problems have been fixed in\nversion 4.11.4+107-gef32c7afa2-1. \n\nWe recommend that you upgrade your xen packages. \n\nFor the detailed security status of xen please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/xen\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n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\nJFAnmgSM/XPrIqxtZR+gX8nxqTBPWYDaTtRFZOVhA7hDpVmnAGo=\n=stfn\n-----END PGP SIGNATURE-----\n",
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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.