ghsa-p6jf-pv8c-623c
Vulnerability from github
Published
2025-04-13 15:30
Modified
2025-04-30 15:30
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Details

A heap buffer overflow vulnerability was discovered in Perl.

When there are non-ASCII bytes in the left-hand-side of the tr operator, S_do_trans_invmap can overflow the destination pointer d.

$ perl -e '$_ = "\x{FF}" x 1000000; tr/\xFF/\x{100}/;'    Segmentation fault (core dumped)

It is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56406"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-122",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-13T14:15:14Z",
    "severity": "HIGH"
  },
  "details": "A heap buffer overflow vulnerability was discovered in Perl. \n\nWhen there are non-ASCII bytes in the left-hand-side of the `tr` operator, `S_do_trans_invmap` can overflow the destination pointer `d`.\n\n\u00a0 \u00a0$ perl -e \u0027$_ = \"\\x{FF}\" x 1000000; tr/\\xFF/\\x{100}/;\u0027 \n\u00a0 \u00a0Segmentation fault (core dumped)\n\nIt is believed that this vulnerability can enable Denial of Service and possibly Code Execution attacks on platforms that lack sufficient defenses.",
  "id": "GHSA-p6jf-pv8c-623c",
  "modified": "2025-04-30T15:30:47Z",
  "published": "2025-04-13T15:30:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56406"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Perl/perl5/commit/87f42aa0e0096e9a346c9672aa3a0bd3bef8c1dd.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/SHAY/perl-5.38.4/changes"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/SHAY/perl-5.40.2/changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/04/13/3"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/04/13/4"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/04/13/5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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