CVE-2026-108518

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{"affected": [{"affectedData": [{"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"}]}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"}], "cveTags": [], "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'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.\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."}], "id": "CVE-2026-108518", "lastModified": "2026-10-30T13:18:28.023", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.4, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-108518", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-30T12:47:30.050651Z", "version": "2.0.3"}}]}, "published": "2026-10-20T22:18:48.423", "references": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/perl5-dbi/dbi/commit/c2ff4df575d7af625bb4d0d1ef7539f90b22d8b2.patch"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3"}, {"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "url": "https://metacpan.org/release/HMBRAND/DBI-1.656/changes"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/10/20/37"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3"}], "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-843"}], "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary"}]}

{"bugzilla": {"description": "perl-dbi: perl-dbi: Denial of Service via type confusion in dbi_profile", "id": "2557484", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2557484"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.7", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-843", "details": ["A flaw was found in the perl-dbi package. A type confusion vulnerability in the profiling feature can lead to an invalid memory dereference, causing the application to crash and resulting in a Denial of Service (DoS). A user or attacker capable of supplying profiling configuration, such as through environment variables, can trigger this flaw during database handle destruction under specific profile path settings."], "name": "CVE-2026-108518", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "perl-DBI:1.641/perl-DBI", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "perl-DBI", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-10-20T21:23:13Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-108518\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-108518\nhttps://github.com/perl5-dbi/dbi/commit/c2ff4df575d7af625bb4d0d1ef7539f90b22d8b2.patch\nhttps://github.com/perl5-dbi/dbi/security/advisories/GHSA-7393-6f8r-fhh3\nhttps://metacpan.org/release/HMBRAND/DBI-1.656/changes"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.656)"}}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "dbi", "vendor": "perl5-dbi"}], "created": "2026-10-21T03:15:14.879314+00:00", "updated": "2026-10-30T14:45:14.971226+00:00", "vendors": ["perl5-dbi", "perl5-dbi$PRODUCT$dbi"]}