Vulnerability-Lookup

ubuntu-cve-2024-56406

Vulnerability from osv_ubuntu

Published

2025-04-13 13:00

Modified

2026-04-22 07:52

Summary

Details

A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. 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.

Severity

8.4 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2024-56406	REPORT
	https://www.cve.org/CVERecord?id=CVE-2024-56406	REPORT
	https://ubuntu.com/security/notices/USN-7434-1	ADVISORY
	https://ubuntu.com/security/notices/USN-7434-2	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libperl5.34",
            "binary_version": "5.34.0-3ubuntu1.4"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.34.0-3ubuntu1.4"
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      },
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        "5.32.1-3ubuntu3",
        "5.34.0-3ubuntu1",
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        "5.34.0-3ubuntu1.3"
      ]
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    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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            "binary_name": "libperl5.38t64",
            "binary_version": "5.38.2-3.2ubuntu0.1"
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      },
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      ],
      "versions": [
        "5.36.0-9ubuntu1",
        "5.36.0-10ubuntu1",
        "5.38.2-3",
        "5.38.2-3.2",
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        "5.38.2-3.2build2",
        "5.38.2-3.2build2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. 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`. \u00a0 \u00a0$ perl -e \u0027$_ = \"\\x{FF}\" x 1000000; tr/\\xFF/\\x{100}/;\u0027 \u00a0 \u00a0Segmentation 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.",
  "id": "UBUNTU-CVE-2024-56406",
  "modified": "2026-04-22T07:52:30Z",
  "published": "2025-04-13T13:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-56406"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-56406"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7434-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7434-2"
    }
  ],
  "related": [
    "USN-7434-1",
    "USN-7434-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-56406"
  ]
}

CVE-2024-56406 (GCVE-0-2024-56406)

Vulnerability from cvelistv5 – Published: 2025-04-13 13:16 – Updated: 2025-10-16 14:04

Title

Perl is vulnerable to a heap buffer overflow when transliterating non-ASCII bytes

Summary

A heap buffer overflow vulnerability was discovered in Perl. Release branches 5.34, 5.36, 5.38 and 5.40 are affected, including development versions from 5.33.1 through 5.41.10. 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.

Severity

8.4 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-122 - Heap-based Buffer Overflow
CWE-787 - Out-of-bounds Write

Assigner

CPANSec

References

6 references

URL	Tags
https://github.com/Perl/perl5/commit/87f42aa0e009…	patch
https://metacpan.org/release/SHAY/perl-5.38.4/changes	release-notes
https://metacpan.org/release/SHAY/perl-5.40.2/changes	release-notes
http://www.openwall.com/lists/oss-security/2025/04/13/3
http://www.openwall.com/lists/oss-security/2025/04/13/4
http://www.openwall.com/lists/oss-security/2025/04/13/5

Impacted products

1 product

Vendor	Product	Version
perl	perl	Affected: 5.41.0 , ≤ 5.41.10 (custom) Affected: 5.39.0 , < 5.40.2-RC1 (custom) Affected: 5.33.1 , < 5.38.4-RC1 (custom)

Credits

Nathan Mills

Show details on NVD website

JSON

To clipboard

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          "programRoutines": [
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usn-7434-1

Vulnerability from osv_ubuntu

Published

2025-04-14 11:48

Modified

2026-04-22 07:37

Summary

perl vulnerability

Details

It was discovered that Perl incorrectly handled transliterating non-ASCII bytes. A remote attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

URL

Type

	https://ubuntu.com/security/notices/USN-7434-1	ADVISORY
	https://ubuntu.com/security/CVE-2024-56406	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-56406",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libperl5.34",
            "binary_version": "5.34.0-3ubuntu1.4"
          },
          {
            "binary_name": "perl",
            "binary_version": "5.34.0-3ubuntu1.4"
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          {
            "binary_name": "perl-base",
            "binary_version": "5.34.0-3ubuntu1.4"
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            "binary_name": "perl-debug",
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          {
            "binary_name": "perl-modules-5.34",
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        }
      ],
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
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        }
      },
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          {
            "binary_name": "perl-modules-5.38",
            "binary_version": "5.38.2-3.2ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
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  "details": "It was discovered that Perl incorrectly handled transliterating non-ASCII\nbytes. A remote attacker could use this issue to cause Perl to crash,\nresulting in a denial of service, or possibly execute arbitrary code.\n",
  "id": "USN-7434-1",
  "modified": "2026-04-22T07:37:19Z",
  "published": "2025-04-14T11:48:05Z",
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}

usn-7434-2

Vulnerability from osv_ubuntu

Published

2025-04-23 11:50

Modified

2025-10-21 04:48

Summary

perl vulnerability

Details

USN-7434-1 fixed a vulnerability in Perl. This update provides the corresponding update for Ubuntu 25.04.

Original advisory details:

References

URL

Type

	https://ubuntu.com/security/notices/USN-7434-2	ADVISORY
	https://ubuntu.com/security/CVE-2024-56406	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-56406",
              "severity": [
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                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.04"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
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            "binary_name": "libperl-dev",
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          },
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            "binary_name": "libperl5.40",
            "binary_version": "5.40.1-2ubuntu0.1"
          },
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            "binary_name": "perl",
            "binary_version": "5.40.1-2ubuntu0.1"
          },
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          },
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            "binary_name": "perl-debug",
            "binary_version": "5.40.1-2ubuntu0.1"
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            "binary_name": "perl-modules-5.40",
            "binary_version": "5.40.1-2ubuntu0.1"
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        "ecosystem": "Ubuntu:25.04",
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        }
      ],
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        "5.38.2-5",
        "5.40.0-6",
        "5.40.0-7",
        "5.40.0-8",
        "5.40.1-2"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-7434-1 fixed a vulnerability in Perl. This update provides the\ncorresponding update for Ubuntu 25.04.\n\nOriginal advisory details:\n\n It was discovered that Perl incorrectly handled transliterating non-ASCII\n bytes. A remote attacker could use this issue to cause Perl to crash,\n resulting in a denial of service, or possibly execute arbitrary code.\n",
  "id": "USN-7434-2",
  "modified": "2025-10-21T04:48:40Z",
  "published": "2025-04-23T11:50:58.775176Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7434-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-56406"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "perl vulnerability",
  "upstream": [
    "UBUNTU-CVE-2024-56406"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2024-56406

Vulnerability from osv_ubuntu

CVE-2024-56406 (GCVE-0-2024-56406)

usn-7434-1

Vulnerability from osv_ubuntu

usn-7434-2

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature