Vulnerability-Lookup

UBUNTU-CVE-2026-108518 (CVE-2026-108518)

Vulnerability from osv_ubuntu – Published: 2026-10-20 22:18 – Updated: 2026-10-28 17:50 – Source website

Details

DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element. An {attr} element names a database handle attribute, which dbi_profile reads from the handle's inner hash. It expects the inner handle as a reference and dereferences it, but a handle that is being destroyed hands back the inner hash itself, so the dereference yields the hash's bucket array. A type check on that pointer usually fails and the call goes unprofiled. When the memory it addresses passes the check, the attribute lookup dereferences a NULL or invalid pointer and the process dies on SIGSEGV. The Path is set by the application, by the Profile handle attribute, or by the DBI_PROFILE environment variable, so DBI_PROFILE={ImplementorClass} can crash an unmodified program.

Severity

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-108518	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-108518	REPORT
	https://lists.security.metacpan.org/cve-announce/…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.630-1ubuntu0.1~esm9"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libdbi-perl",
        "purl": "pkg:deb/ubuntu/libdbi-perl@1.630-1ubuntu0.1~esm9?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
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          ],
          "type": "ECOSYSTEM"
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      "versions": [
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        "1.628-1",
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        "1.630-1ubuntu0.1~esm1",
        "1.630-1ubuntu0.1~esm4",
        "1.630-1ubuntu0.1~esm5",
        "1.630-1ubuntu0.1~esm6",
        "1.630-1ubuntu0.1~esm8",
        "1.630-1ubuntu0.1~esm9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.634-1ubuntu0.2+esm5"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libdbi-perl",
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      },
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        {
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        "1.634-1ubuntu0.1",
        "1.634-1ubuntu0.2",
        "1.634-1ubuntu0.2+esm1",
        "1.634-1ubuntu0.2+esm2",
        "1.634-1ubuntu0.2+esm4",
        "1.634-1ubuntu0.2+esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.640-1ubuntu0.3+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libdbi-perl",
        "purl": "pkg:deb/ubuntu/libdbi-perl@1.640-1ubuntu0.3+esm4?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.637-1",
        "1.639-1",
        "1.640-1",
        "1.640-1ubuntu0.1",
        "1.640-1ubuntu0.2",
        "1.640-1ubuntu0.3",
        "1.640-1ubuntu0.3+esm1",
        "1.640-1ubuntu0.3+esm3",
        "1.640-1ubuntu0.3+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.643-1ubuntu0.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libdbi-perl",
        "purl": "pkg:deb/ubuntu/libdbi-perl@1.643-1ubuntu0.1+esm4?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.642-1",
        "1.642-1build1",
        "1.643-1",
        "1.643-1ubuntu0.1",
        "1.643-1ubuntu0.1+esm1",
        "1.643-1ubuntu0.1+esm3",
        "1.643-1ubuntu0.1+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.643-3ubuntu0.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libdbi-perl",
        "purl": "pkg:deb/ubuntu/libdbi-perl@1.643-3ubuntu0.4?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.643-3build2",
        "1.643-3build3",
        "1.643-3ubuntu0.1",
        "1.643-3ubuntu0.3",
        "1.643-3ubuntu0.4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.643-4ubuntu0.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libdbi-perl",
        "purl": "pkg:deb/ubuntu/libdbi-perl@1.643-4ubuntu0.4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
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        "1.643-4build1",
        "1.643-4build2",
        "1.643-4build3",
        "1.643-4ubuntu0.1",
        "1.643-4ubuntu0.3",
        "1.643-4ubuntu0.4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libdbi-perl",
            "binary_version": "1.652-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
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        "purl": "pkg:deb/ubuntu/libdbi-perl@1.652-2?arch=source\u0026distro=stonking"
      },
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        "1.651-1",
        "1.652-2"
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            "binary_version": "1.647-1ubuntu0.26.04.4"
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      },
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        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libdbi-perl",
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      },
      "ranges": [
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            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
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        "1.647-1",
        "1.647-1build1",
        "1.647-1ubuntu0.26.04.1",
        "1.647-1ubuntu0.26.04.3",
        "1.647-1ubuntu0.26.04.4"
      ]
    }
  ],
  "aliases": [],
  "details": "DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element. An {attr} element names a database handle attribute, which dbi_profile reads from the handle\u0027s inner hash. It expects the inner handle as a reference and dereferences it, but a handle that is being destroyed hands back the inner hash itself, so the dereference yields the hash\u0027s bucket array. A type check on that pointer usually fails and the call goes unprofiled. When the memory it addresses passes the check, the attribute lookup dereferences a NULL or invalid pointer and the process dies on SIGSEGV. The Path is set by the application, by the Profile handle attribute, or by the DBI_PROFILE environment variable, so `DBI_PROFILE={ImplementorClass}` can crash an unmodified program.",
  "id": "UBUNTU-CVE-2026-108518",
  "modified": "2026-10-28T17:50:32Z",
  "published": "2026-10-20T22:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-108518"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-108518"
    },
    {
      "type": "REPORT",
      "url": "https://lists.security.metacpan.org/cve-announce/msg/44513047/"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-108518"
  ]
}

CVE-2026-108518 (GCVE-0-2026-108518)

Vulnerability from cvelistv5 – Published: 2026-10-20 21:23 – Updated: 2026-10-30 12:48

Title

DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element

Summary

DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element. An {attr} element names a database handle attribute, which dbi_profile reads from the handle's inner hash. It expects the inner handle as a reference and dereferences it, but a handle that is being destroyed hands back the inner hash itself, so the dereference yields the hash's bucket array. A type check on that pointer usually fails and the call goes unprofiled. When the memory it addresses passes the check, the attribute lookup dereferences a NULL or invalid pointer and the process dies on SIGSEGV. The Path is set by the application, by the Profile handle attribute, or by the DBI_PROFILE environment variable, so `DBI_PROFILE={ImplementorClass}` can crash an unmodified program.

Severity

2.9 (Low)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-30 12:47 UTC

CWE

CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 62/100 over 346 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/perl5-dbi/dbi/security/advisor…	vendor-advisory
https://github.com/perl5-dbi/dbi/commit/c2ff4df57…	patch
https://metacpan.org/release/HMBRAND/DBI-1.656/changes	release-notes
http://www.openwall.com/lists/oss-security/2026/1…

Impacted products

1 product

Vendor	Product	Version
		Affected: 0 , < 1.656 (custom)

Credits

Henrik Teichmann

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2026-10-21T00:17:16.110Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://www.openwall.com/lists/oss-security/2026/10/20/37"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "LOW",
              "baseScore": 2.9,
              "baseSeverity": "LOW",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-108518",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-30T12:47:30.050651Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-30T12:48:49.541Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "modules": [
            "DBI"
          ],
          "packageName": "DBI",
          "packageURL": "pkg:cpan/DBI",
          "programFiles": [
            "DBI.xs"
          ],
          "programRoutines": [
            {
              "name": "dbi_profile"
            }
          ],
          "repo": "https://github.com/perl5-dbi/dbi",
          "versions": [
            {
              "lessThan": "1.656",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Henrik Teichmann"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element.\n\nAn {attr} element names a database handle attribute, which dbi_profile reads from the handle\u0027s inner hash. It expects the inner handle as a reference and dereferences it, but a handle that is being destroyed hands back the inner hash itself, so the dereference yields the hash\u0027s bucket array. A type check on that pointer usually fails and the call goes unprofiled. When the memory it addresses passes the check, the attribute lookup dereferences a NULL or invalid pointer and the process dies on SIGSEGV.\n\nThe Path is set by the application, by the Profile handle attribute, or by the DBI_PROFILE environment variable, so `DBI_PROFILE={ImplementorClass}` can crash an unmodified program."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-843",
              "description": "CWE-843 Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-20T21:23:13.373Z",
        "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "shortName": "CPANSec"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3"
        },
        {
          "tags": [
            "patch"
          ],
          "url": "https://github.com/perl5-dbi/dbi/commit/c2ff4df575d7af625bb4d0d1ef7539f90b22d8b2.patch"
        },
        {
          "tags": [
            "release-notes"
          ],
          "url": "https://metacpan.org/release/HMBRAND/DBI-1.656/changes"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to DBI 1.656 or later."
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "DBI versions before 1.656 for Perl crash via type confusion in dbi_profile when a database handle is destroyed under a Profile Path with an {attr} element",
      "x_generator": {
        "engine": "cpansec-cna-tool 0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
    "assignerShortName": "CPANSec",
    "cveId": "CVE-2026-108518",
    "datePublished": "2026-10-20T21:23:13.373Z",
    "dateReserved": "2026-10-10T09:59:45.173Z",
    "dateUpdated": "2026-10-30T12:48:49.541Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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