Bug 1828583 (CVE-2020-8695)
| Summary: | CVE-2020-8695 hw: Information disclosure issue in Intel SGX via RAPL interface | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Pedro Sampaio <psampaio> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, adscvr, airlied, bskeggs, esyr, hdegoede, itamar, jarodwilson, jcm, jeremy, jforbes, jglisse, jonathan, josef, jwboyer, kernel-maint, lgoncalv, linville, masami256, mchehab, mjg59, pmatouse, poros, ptalbert, qzhao, security-response-team, skozina, steved, wmealing |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A vulnerability was found in Intel's implementation of RAPL (Running Average Power Limit). An attacker with a local account could query the power management functionality to intelligently infer SGX enclave computation values by measuring power usage in the RAPL subsystem.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-11-11 14:21:18 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1844292, 1844293, 1893256, 1893257, 1893258, 1893259, 1893260, 1893261, 1893262, 1893263, 1893264, 1893265, 1893266 | ||
| Bug Blocks: | 1828584 | ||
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Comment 1
Wade Mealing
2020-05-21 04:45:40 UTC
Acknowledgments: Name: Intel External References: https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00389.html https://en.wikipedia.org/wiki/Power_analysis This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:5085 https://access.redhat.com/errata/RHSA-2020:5085 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:5083 https://access.redhat.com/errata/RHSA-2020:5083 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-8695 Mitigation: Until a firmware update and reboot can be applied, the attack vector can be reduced by limiting read access to the sysfs attributes that export this functionality to userspace. The command: ~~~ sudo chmod 400 /sys/class/powercap/intel_rapl/*/energy_uj ~~~ Will do this for the current boot, it will need to be scripted to run at each boot to remain persistent across reboots. This issue has been addressed in the following products: Red Hat Enterprise Linux 7.3 Advanced Update Support Red Hat Enterprise Linux 7.3 Update Services for SAP Solutions Red Hat Enterprise Linux 7.3 Telco Extended Update Support Via RHSA-2020:5183 https://access.redhat.com/errata/RHSA-2020:5183 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.4 Advanced Update Support Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions Red Hat Enterprise Linux 7.4 Telco Extended Update Support Via RHSA-2020:5182 https://access.redhat.com/errata/RHSA-2020:5182 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions Via RHSA-2020:5186 https://access.redhat.com/errata/RHSA-2020:5186 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2020:5181 https://access.redhat.com/errata/RHSA-2020:5181 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Extended Update Support Via RHSA-2020:5185 https://access.redhat.com/errata/RHSA-2020:5185 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.2 Advanced Update Support Via RHSA-2020:5188 https://access.redhat.com/errata/RHSA-2020:5188 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.7 Extended Update Support Via RHSA-2020:5190 https://access.redhat.com/errata/RHSA-2020:5190 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.1 Extended Update Support Via RHSA-2020:5369 https://access.redhat.com/errata/RHSA-2020:5369 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2021:3027 https://access.redhat.com/errata/RHSA-2021:3027 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2021:3028 https://access.redhat.com/errata/RHSA-2021:3028 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.7 Extended Update Support Via RHSA-2021:3029 https://access.redhat.com/errata/RHSA-2021:3029 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.1 Extended Update Support Via RHSA-2021:3176 https://access.redhat.com/errata/RHSA-2021:3176 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.4 Advanced Update Support Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions Red Hat Enterprise Linux 7.4 Telco Extended Update Support Via RHSA-2021:3255 https://access.redhat.com/errata/RHSA-2021:3255 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.2 Advanced Update Support Via RHSA-2021:3323 https://access.redhat.com/errata/RHSA-2021:3323 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.3 Advanced Update Support Via RHSA-2021:3322 https://access.redhat.com/errata/RHSA-2021:3322 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Advanced Update Support Red Hat Enterprise Linux 7.6 Update Services for SAP Solutions Red Hat Enterprise Linux 7.6 Telco Extended Update Support Via RHSA-2021:3317 https://access.redhat.com/errata/RHSA-2021:3317 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Extended Update Support Via RHSA-2021:3364 https://access.redhat.com/errata/RHSA-2021:3364 |