github - ghsa-c87p-h49c-qjmw

ghsa-c87p-h49c-qjmw

Vulnerability from github

Published

2022-05-24 17:28

Modified

2022-05-24 17:28

Details

A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

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  "affected": [],
  "aliases": [
    "CVE-2020-10766"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-09-15T23:15:00Z",
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  "details": "A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.",
  "id": "GHSA-c87p-h49c-qjmw",
  "modified": "2022-05-24T17:28:22Z",
  "published": "2022-05-24T17:28:22Z",
  "references": [
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  "schema_version": "1.4.0",
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}

CVE-2020-10766 (GCVE-0-2020-10766)

Vulnerability from cvelistv5

Published

2020-09-15 22:10

Modified

2024-08-04 11:14

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-440

Summary

A logic bug flaw was found in Linux kernel before 5.8-rc1 in the implementation of SSBD. A bug in the logic handling allows an attacker with a local account to disable SSBD protection during a context switch when additional speculative execution mitigations are in place. This issue was introduced when the per task/process conditional STIPB switching was added on top of the existing SSBD switching. The highest threat from this vulnerability is to confidentiality.

References

URL

Tags

	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10766	x_refsource_CONFIRM
	https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbbe2ad02e9df26e372f38cc3e70dab9222c832e	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Linux Kernel	kernel	Version: before 5.8-rc1

Show details on NVD website

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