GHSA-VFRP-P8QM-9M8X

Vulnerability from github – Published: 2022-05-14 01:52 – Updated: 2025-11-25 18:32
VLAI?
Details

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.

Severity ?
9.1 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-12387"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-18T13:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR \u003c 60.2.2 and Firefox \u003c 62.0.3.",
  "id": "GHSA-vfrp-p8qm-9m8x",
  "modified": "2025-11-25T18:32:14Z",
  "published": "2022-05-14T01:52:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12387"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2881"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2884"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1493903"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201810-01"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3778-1"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2018/dsa-4310"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2018-24"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105460"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041770"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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