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ID

VAR-202106-0343


CVE

CVE-2020-24511


TITLE

Red Hat Security Advisory 2021-3029-01

Trust: 0.1

sources: PACKETSTORM: 163772

DESCRIPTION

Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: microcode_ctl security, bug fix and enhancement update Advisory ID: RHSA-2021:2301-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2301 Issue date: 2021-06-08 CVE Names: CVE-2020-24489 CVE-2020-24511 CVE-2020-24512 CVE-2020-24513 ==================================================================== 1. Summary: An update for microcode_ctl is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server E4S (v. 7.4) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.4) - x86_64 3. Description: The microcode_ctl packages provide microcode updates for Intel. Security Fix(es): * hw: vt-d related privilege escalation (CVE-2020-24489) * hw: improper isolation of shared resources in some Intel Processors (CVE-2020-24511) * hw: observable timing discrepancy in some Intel Processors (CVE-2020-24512) * hw: information disclosure on some Intel Atom processors (CVE-2020-24513) Bug Fix(es) and Enhancement(s): * Update Intel CPU microcode to microcode-20210525 release 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1962650 - CVE-2020-24489 hw: vt-d related privilege escalation 1962666 - CVE-2020-24513 hw: information disclosure on some Intel Atom processors 1962702 - CVE-2020-24511 hw: improper isolation of shared resources in some Intel Processors 1962722 - CVE-2020-24512 hw: observable timing discrepancy in some Intel Processors 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.4): Source: microcode_ctl-2.1-22.39.el7_4.src.rpm x86_64: microcode_ctl-2.1-22.39.el7_4.x86_64.rpm microcode_ctl-debuginfo-2.1-22.39.el7_4.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.4): Source: microcode_ctl-2.1-22.39.el7_4.src.rpm x86_64: microcode_ctl-2.1-22.39.el7_4.x86_64.rpm microcode_ctl-debuginfo-2.1-22.39.el7_4.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.4): Source: microcode_ctl-2.1-22.39.el7_4.src.rpm x86_64: microcode_ctl-2.1-22.39.el7_4.x86_64.rpm microcode_ctl-debuginfo-2.1-22.39.el7_4.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-24489 https://access.redhat.com/security/cve/CVE-2020-24511 https://access.redhat.com/security/cve/CVE-2020-24512 https://access.redhat.com/security/cve/CVE-2020-24513 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYMAhZtzjgjWX9erEAQgacA/8CSb4gKvVxCL/UEvQ8fD+Fuk7bVgGXgdl zfHALQmqxEvgcquECA1+0gVaALewsTbv0jYGt8ar3LXlNfdYvJyTZIkkTU7QPZX4 noIGXIk9Ljn6HDzNVq4+SzQGFhsy+eCyj0ksgLD1pYvSXZhMhIFoNs88qbn4vohF NWbr/79PFDN5Z8OD6eZ62dQuU0EBgR2/zQGhqEp2A5AIGyCpoGkeMjQbcEr8MTYw re11SdeDWdXudlgn6lCeVm1NB8/oaCRih7VTaNzHMTihyG2fS6Vfy9Tf1PcXXrZT 8r21wAISxES7QfMCxBB3jnlq+/3QYFG/dYLDZ8EDwa6ZCXyFRHirUQP6vrk9TG5k xVPIFH/QUwcWFaquGbvtpllAgn1tcSohpzMzDPqLIFSO031A1Xdn6JaYaUi9unO7 wOUS5MMYTJtXjQJ/lBjMFFCEMzGZ1VY74wwdHmyoBW9eA6DnfjTHsnhTpWvLbuHw fM0+/amC1YdZkMOmKWeSNkB0ESISQw6d7/pgT1px/ZyEktGtlnvOcybPpqVVFnnT 3llMAz6CW3UL59MvAvPk9dXKSeJBfsXVVQq21VVuNi/KHSE9tsYQnBgiVizDbrru npkQK4e+JU/GxTuioDK4/QrC89S9ZTvHcfiTFhpDt8DNxJdkmjjNi87m1UWfS1rL 3CqP9OqPU7Q=cruI -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . ========================================================================= Ubuntu Security Notice USN-4985-1 June 09, 2021 intel-microcode vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in Intel Microcode. This may allow a local user to perform a privilege escalation attack. (CVE-2021-24489) Joseph Nuzman discovered that some Intel processors may not properly apply EIBRS mitigations (originally developed for CVE-2017-5715) and hence may allow unauthorized memory reads via sidechannel attacks. A local attacker could use this to expose sensitive information, including kernel memory. (CVE-2020-24511) Travis Downs discovered that some Intel processors did not properly flush cache-lines for trivial-data values. This may allow an unauthorized user to infer the presence of these trivial-data-cache-lines via timing sidechannel attacks. A local attacker could use this to expose sensitive information. (CVE-2020-24512) It was discovered that certain Intel Atom processors could expose memory contents stored in microarchitectural buffers. A local attacker could use this to expose sensitive information. (CVE-2020-24513) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: intel-microcode 3.20210608.0ubuntu0.21.04.1 Ubuntu 20.10: intel-microcode 3.20210608.0ubuntu0.20.10.1 Ubuntu 20.04 LTS: intel-microcode 3.20210608.0ubuntu0.20.04.1 Ubuntu 18.04 LTS: intel-microcode 3.20210608.0ubuntu0.18.04.1 Ubuntu 16.04 ESM: intel-microcode 3.20210608.0ubuntu0.16.04.1+esm1 Ubuntu 14.04 ESM: intel-microcode 3.20210608.0ubuntu0.14.04.1+esm1 After a standard system update you need to reboot your computer to make all the necessary changes

Trust: 1.8

sources: NVD: CVE-2020-24511 // VULHUB: VHN-178397 // VULMON: CVE-2020-24511 // PACKETSTORM: 163772 // PACKETSTORM: 163954 // PACKETSTORM: 163966 // PACKETSTORM: 163040 // PACKETSTORM: 163043 // PACKETSTORM: 163048 // PACKETSTORM: 163863 // PACKETSTORM: 163993

AFFECTED PRODUCTS

vendor:debianmodel:linuxscope:eqversion:10.0

Trust: 1.0

vendor:netappmodel:solidfire biosscope:eqversion: -

Trust: 1.0

vendor:netappmodel:hci compute node biosscope:eqversion: -

Trust: 1.0

vendor:intelmodel:microcodescope:ltversion:20210608

Trust: 1.0

vendor:netappmodel:fas\/aff biosscope:eqversion: -

Trust: 1.0

sources: NVD: CVE-2020-24511

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-24511
value: MEDIUM

Trust: 1.0

VULHUB: VHN-178397
value: LOW

Trust: 0.1

VULMON: CVE-2020-24511
value: LOW

Trust: 0.1

nvd@nist.gov: CVE-2020-24511
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:P/I:N/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.1

VULHUB: VHN-178397
severity: LOW
baseScore: 2.1
vectorString: AV:L/AC:L/AU:N/C:P/I:N/A:N
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 3.9
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2020-24511
baseSeverity: MEDIUM
baseScore: 6.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: CHANGED
confidentialityImpact: HIGH
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 2.0
impactScore: 4.0
version: 3.1

Trust: 1.0

sources: VULHUB: VHN-178397 // VULMON: CVE-2020-24511 // NVD: CVE-2020-24511

PROBLEMTYPE DATA

problemtype:CWE-668

Trust: 1.1

sources: VULHUB: VHN-178397 // NVD: CVE-2020-24511

THREAT TYPE

local

Trust: 0.1

sources: PACKETSTORM: 163048

TYPE

info disclosure

Trust: 0.1

sources: PACKETSTORM: 163966

PATCH

title:Red Hat: CVE-2020-24511url:https://vulmon.com/vendoradvisory?qidtp=red_hat_cve_database&qid=CVE-2020-24511

Trust: 0.1

title:Debian CVElist Bug Report Logs: intel-microcode: CVE-2020-24511 CVE-2020-24512 CVE-2020-24513 CVE-2021-24489 (INTEL-SA-00464, INTEL-SA-00465, INTEL-SA-00442)url:https://vulmon.com/vendoradvisory?qidtp=debian_cvelist_bugreportlogs&qid=5d902b5a89823da316827bef43ff1012

Trust: 0.1

title:Debian Security Advisories: DSA-4934-1 intel-microcode -- security updateurl:https://vulmon.com/vendoradvisory?qidtp=debian_security_advisories&qid=4ad7d48e75ab61a8e061047171de2577

Trust: 0.1

title:Arch Linux Issues: url:https://vulmon.com/vendoradvisory?qidtp=arch_linux_issues&qid=CVE-2020-24511 log

Trust: 0.1

title:Arch Linux Advisories: [ASA-202106-34] intel-ucode: multiple issuesurl:https://vulmon.com/vendoradvisory?qidtp=arch_linux_advisories&qid=ASA-202106-34

Trust: 0.1

title:Siemens Security Advisories: Siemens Security Advisoryurl:https://vulmon.com/vendoradvisory?qidtp=siemens_security_advisories&qid=240e27e5c8fba28153598a375a2a4130

Trust: 0.1

title:CVE-2020-24511url:https://github.com/AlAIAL90/CVE-2020-24511

Trust: 0.1

sources: VULMON: CVE-2020-24511

EXTERNAL IDS

db:NVDid:CVE-2020-24511

Trust: 2.0

db:SIEMENSid:SSA-309571

Trust: 1.1

db:PACKETSTORMid:163040

Trust: 0.2

db:PACKETSTORMid:163043

Trust: 0.2

db:PACKETSTORMid:163048

Trust: 0.2

db:PACKETSTORMid:163037

Trust: 0.1

db:PACKETSTORMid:163047

Trust: 0.1

db:PACKETSTORMid:163044

Trust: 0.1

db:PACKETSTORMid:163042

Trust: 0.1

db:PACKETSTORMid:163031

Trust: 0.1

db:PACKETSTORMid:163032

Trust: 0.1

db:PACKETSTORMid:163036

Trust: 0.1

db:PACKETSTORMid:163046

Trust: 0.1

db:VULHUBid:VHN-178397

Trust: 0.1

db:VULMONid:CVE-2020-24511

Trust: 0.1

db:PACKETSTORMid:163772

Trust: 0.1

db:PACKETSTORMid:163954

Trust: 0.1

db:PACKETSTORMid:163966

Trust: 0.1

db:PACKETSTORMid:163863

Trust: 0.1

db:PACKETSTORMid:163993

Trust: 0.1

sources: VULHUB: VHN-178397 // VULMON: CVE-2020-24511 // PACKETSTORM: 163772 // PACKETSTORM: 163954 // PACKETSTORM: 163966 // PACKETSTORM: 163040 // PACKETSTORM: 163043 // PACKETSTORM: 163048 // PACKETSTORM: 163863 // PACKETSTORM: 163993 // NVD: CVE-2020-24511

REFERENCES

url:https://security.netapp.com/advisory/ntap-20210611-0005/

Trust: 1.2

url:https://www.debian.org/security/2021/dsa-4934

Trust: 1.2

url:https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00464.html

Trust: 1.2

url:https://lists.debian.org/debian-lts-announce/2021/07/msg00022.html

Trust: 1.2

url:https://cert-portal.siemens.com/productcert/pdf/ssa-309571.pdf

Trust: 1.1

url:https://access.redhat.com/security/cve/cve-2020-24511

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2020-24512

Trust: 0.8

url:https://nvd.nist.gov/vuln/detail/cve-2020-24511

Trust: 0.8

url:https://access.redhat.com/articles/11258

Trust: 0.7

url:https://access.redhat.com/security/cve/cve-2020-24512

Trust: 0.7

url:https://nvd.nist.gov/vuln/detail/cve-2020-24489

Trust: 0.7

url:https://access.redhat.com/security/cve/cve-2020-24489

Trust: 0.7

url:https://listman.redhat.com/mailman/listinfo/rhsa-announce

Trust: 0.7

url:https://access.redhat.com/security/updates/classification/#important

Trust: 0.7

url:https://access.redhat.com/security/team/key/

Trust: 0.7

url:https://access.redhat.com/security/team/contact/

Trust: 0.7

url:https://bugzilla.redhat.com/):

Trust: 0.7

url:https://nvd.nist.gov/vuln/detail/cve-2020-8696

Trust: 0.5

url:https://access.redhat.com/security/cve/cve-2020-8698

Trust: 0.5

url:https://nvd.nist.gov/vuln/detail/cve-2020-8698

Trust: 0.5

url:https://nvd.nist.gov/vuln/detail/cve-2020-0549

Trust: 0.5

url:https://access.redhat.com/security/cve/cve-2020-0543

Trust: 0.5

url:https://access.redhat.com/security/cve/cve-2020-8695

Trust: 0.5

url:https://nvd.nist.gov/vuln/detail/cve-2020-8695

Trust: 0.5

url:https://access.redhat.com/security/cve/cve-2020-0549

Trust: 0.5

url:https://nvd.nist.gov/vuln/detail/cve-2020-0543

Trust: 0.5

url:https://access.redhat.com/security/cve/cve-2020-8696

Trust: 0.5

url:https://nvd.nist.gov/vuln/detail/cve-2020-0548

Trust: 0.5

url:https://access.redhat.com/security/cve/cve-2020-0548

Trust: 0.5

url:https://nvd.nist.gov/vuln/detail/cve-2020-24513

Trust: 0.3

url:https://access.redhat.com/security/cve/cve-2020-24513

Trust: 0.2

url:https://cwe.mitre.org/data/definitions/668.html

Trust: 0.1

url:https://github.com/alaial90/cve-2020-24511

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:3029

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:3323

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:3317

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:2307

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:2301

Trust: 0.1

url:https://nvd.nist.gov/vuln/detail/cve-2021-24489

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/intel-microcode/3.20210608.0ubuntu0.20.10.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/intel-microcode/3.20210608.0ubuntu0.21.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/intel-microcode/3.20210608.0ubuntu0.20.04.1

Trust: 0.1

url:https://launchpad.net/ubuntu/+source/intel-microcode/3.20210608.0ubuntu0.18.04.1

Trust: 0.1

url:https://ubuntu.com/security/notices/usn-4985-1

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:3176

Trust: 0.1

url:https://access.redhat.com/errata/rhsa-2021:3364

Trust: 0.1

sources: VULHUB: VHN-178397 // VULMON: CVE-2020-24511 // PACKETSTORM: 163772 // PACKETSTORM: 163954 // PACKETSTORM: 163966 // PACKETSTORM: 163040 // PACKETSTORM: 163043 // PACKETSTORM: 163048 // PACKETSTORM: 163863 // PACKETSTORM: 163993 // NVD: CVE-2020-24511

CREDITS

Red Hat

Trust: 0.7

sources: PACKETSTORM: 163772 // PACKETSTORM: 163954 // PACKETSTORM: 163966 // PACKETSTORM: 163040 // PACKETSTORM: 163043 // PACKETSTORM: 163863 // PACKETSTORM: 163993

SOURCES

db:VULHUBid:VHN-178397
db:VULMONid:CVE-2020-24511
db:PACKETSTORMid:163772
db:PACKETSTORMid:163954
db:PACKETSTORMid:163966
db:PACKETSTORMid:163040
db:PACKETSTORMid:163043
db:PACKETSTORMid:163048
db:PACKETSTORMid:163863
db:PACKETSTORMid:163993
db:NVDid:CVE-2020-24511

LAST UPDATE DATE

2025-08-12T21:25:33.944000+00:00


SOURCES UPDATE DATE

db:VULHUBid:VHN-178397date:2021-09-09T00:00:00
db:VULMONid:CVE-2020-24511date:2021-08-10T00:00:00
db:NVDid:CVE-2020-24511date:2021-09-09T12:55:19.680

SOURCES RELEASE DATE

db:VULHUBid:VHN-178397date:2021-06-09T00:00:00
db:VULMONid:CVE-2020-24511date:2021-06-09T00:00:00
db:PACKETSTORMid:163772date:2021-08-10T14:49:53
db:PACKETSTORMid:163954date:2021-08-31T15:43:48
db:PACKETSTORMid:163966date:2021-08-31T15:56:51
db:PACKETSTORMid:163040date:2021-06-09T13:40:18
db:PACKETSTORMid:163043date:2021-06-09T13:40:40
db:PACKETSTORMid:163048date:2021-06-09T13:42:19
db:PACKETSTORMid:163863date:2021-08-17T15:19:34
db:PACKETSTORMid:163993date:2021-08-31T16:27:14
db:NVDid:CVE-2020-24511date:2021-06-09T19:15:08.897