github - ghsa-82f5-ghc6-rj5c

ghsa-82f5-ghc6-rj5c

Vulnerability from github

Published

2023-07-06 21:15

Modified

2024-04-04 05:46

Severity

6.5 (Medium) - CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47

Show details on source website

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  "affected": [],
  "aliases": [
    "CVE-2023-0459"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-763"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-25T14:15:09Z",
    "severity": "MODERATE"
  },
  "details": "Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the \"access_ok\" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit\u00a074e19ef0ff8061ef55957c3abd71614ef0f42f47",
  "id": "GHSA-82f5-ghc6-rj5c",
  "modified": "2024-04-04T05:46:54Z",
  "published": "2023-07-06T21:15:05Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0459"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-0459

Vulnerability from cvelistv5

Published

2023-05-25 13:22

Modified

2024-08-02 05:10

Severity

6.5 (Medium) - cvssV3_1 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Summary

Copy_from_user Spectre-V1 Gadget in Linux Kernel

References

URL	Tags
https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c
https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47

Impacted products

Vendor	Product
Linux	Linux Kernel

Show details on NVD website

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