GHSA-JJVG-65V4-V3CQ

Vulnerability from github – Published: 2022-05-14 02:47 – Updated: 2024-10-21 18:30
VLAI?
Details

Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an "Off-by-two" or "Out of bounds overwrite" memory error.

Severity ?
7.4 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2015-8370"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2015-12-16T21:59:00Z",
    "severity": "MODERATE"
  },
  "details": "Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grub_username_get function in grub-core/normal/auth.c or the (2) grub_password_get function in lib/crypto.c, which trigger an \"Off-by-two\" or \"Out of bounds overwrite\" memory error.",
  "id": "GHSA-jjvg-65v4-v3cq",
  "modified": "2024-10-21T18:30:44Z",
  "published": "2022-05-14T02:47:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-8370"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201512-03"
    },
    {
      "type": "WEB",
      "url": "http://hmarco.org/bugs/CVE-2015-8370-Grub2-authentication-bypass.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-December/173703.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174049.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00037.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00039.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00040.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00041.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00043.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00044.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00003.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/134831/Grub2-Authentication-Bypass.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2015-2623.html"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2015/Dec/69"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2015/dsa-3421"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2015/12/15/6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/01/15/3"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/537115/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/79358"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1034422"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-2836-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.