ghsa-fr39-wf38-f5w3
Vulnerability from github
Published
2022-05-13 01:50
Modified
2022-05-13 01:50
Severity ?
6.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Details

The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-15572"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-08-20T02:29:00Z",
    "severity": "MODERATE"
  },
  "details": "The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.",
  "id": "GHSA-fr39-wf38-f5w3",
  "modified": "2022-05-13T01:50:10Z",
  "published": "2022-05-13T01:50:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15572"
    },
    {
      "type": "WEB",
      "url": "https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346"
    },
    {
      "type": "WEB",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3775-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3775-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3776-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3776-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3777-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3777-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3777-3"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4308"
    },
    {
      "type": "WEB",
      "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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