ghsa-jg34-cmw8-gw85
Vulnerability from github
Published
2024-05-21 18:31
Modified
2024-11-07 18:31
Severity ?
2.5 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Details

In the Linux kernel, the following vulnerability has been resolved:

xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

int type = nla_type(nla);

if (type > XFRMA_MAX) { return -EOPNOTSUPP; }

@type is then used as an array index and can be used as a Spectre v1 gadget.

if (nla_len(nla) < compat_policy[type].len) {

array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52746"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-21T16:15:14Z",
    "severity": "LOW"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()\n\n  int type = nla_type(nla);\n\n  if (type \u003e XFRMA_MAX) {\n            return -EOPNOTSUPP;\n  }\n\n@type is then used as an array index and can be used\nas a Spectre v1 gadget.\n\n  if (nla_len(nla) \u003c compat_policy[type].len) {\n\narray_index_nospec() can be used to prevent leaking\ncontent of kernel memory to malicious users.",
  "id": "GHSA-jg34-cmw8-gw85",
  "modified": "2024-11-07T18:31:20Z",
  "published": "2024-05-21T18:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52746"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/419674224390fca298020fc0751a20812f84b12d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5dc688fae6b7be9dbbf5304a3d2520d038e06db5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a893cc644812728e86e9aff517fd5698812ecef0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6ee896385380aa621102e8ea402ba12db1cabff"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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