{"id":"CVE-2026-78183","state":"PUBLISHED","title":"DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float","description":"DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float.\n\nquote_float() allocates the length of the string + 1, which is the size of the bare numeric symbol plus NULL.  But for special literals NaN, Inf, +Inf, -Inf, Infinity, +Infinity, -Infinity it emits the literal surrounded by quotes plus NULL, which is length + 3 bytes. Every recognised literal (case-insensitive) overflows by 2 bytes, a single quote and a NULL.\n\nThis can be reached by the $dbh->quote method, for example\n\n    $dbh->quote( \"Infinity\", DBI::SQL_NUMERIC ).\n\nThis regression was introduced in 3.21.0 by the quote.c rewrite.","publishedAt":"2026-08-23T19:53:18.185Z","updatedAt":"2026-08-25T19:32:39.393Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"CPANSec","products":["DBD-Pg"],"affected":[{"packageName":"DBD-Pg","packageURL":"pkg:cpan/DBD-Pg","defaultStatus":"unaffected","versions":[{"version":"3.21.0","status":"affected","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","modules":["DBD::Pg"],"programFiles":["quote.c"],"programRoutines":[{"name":"quote_float"}],"repo":"https://github.com/bucardo/dbdpg"}],"references":["https://github.com/bucardo/dbdpg/security/advisories/GHSA-785p-fw3v-r822","https://metacpan.org/release/TURNSTEP/DBD-Pg-3.21.1/source/Changes","https://github.com/bucardo/dbdpg/commit/6d6f47ed2403cda55c82b1bad56e388ba7390065.patch","https://github.com/bucardo/dbdpg/commit/adacf1de872326a465e13f9e4281a674ebcd227e","http://www.openwall.com/lists/oss-security/2026/08/23/5"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/78xxx/CVE-2026-78183.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-78183","state":"PUBLISHED","datePublished":"2026-08-23T19:53:18.185Z","dateUpdated":"2026-08-25T19:32:39.393Z","assignerShortName":"CPANSec","assignerOrgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateReserved":"2026-08-23T16:38:31.813Z"},"containers":{"cna":{"title":"DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float","descriptions":[{"lang":"en","value":"DBD::Pg version 3.21.0 for Perl has a heap out-of-bounds write in quote_float.\n\nquote_float() allocates the length of the string + 1, which is the size of the bare numeric symbol plus NULL.  But for special literals NaN, Inf, +Inf, -Inf, Infinity, +Infinity, -Infinity it emits the literal surrounded by quotes plus NULL, which is length + 3 bytes. Every recognised literal (case-insensitive) overflows by 2 bytes, a single quote and a NULL.\n\nThis can be reached by the $dbh->quote method, for example\n\n    $dbh->quote( \"Infinity\", DBI::SQL_NUMERIC ).\n\nThis regression was introduced in 3.21.0 by the quote.c rewrite."}],"affected":[{"packageName":"DBD-Pg","packageURL":"pkg:cpan/DBD-Pg","defaultStatus":"unaffected","versions":[{"version":"3.21.0","status":"affected","versionType":"custom"}],"collectionURL":"https://cpan.org/modules","modules":["DBD::Pg"],"programFiles":["quote.c"],"programRoutines":[{"name":"quote_float"}],"repo":"https://github.com/bucardo/dbdpg"}],"references":[{"url":"https://github.com/bucardo/dbdpg/security/advisories/GHSA-785p-fw3v-r822","tags":["vendor-advisory"]},{"url":"https://metacpan.org/release/TURNSTEP/DBD-Pg-3.21.1/source/Changes","tags":["release-notes"]},{"url":"https://github.com/bucardo/dbdpg/commit/6d6f47ed2403cda55c82b1bad56e388ba7390065.patch","tags":["patch"]},{"url":"https://github.com/bucardo/dbdpg/commit/adacf1de872326a465e13f9e4281a674ebcd227e","tags":["related"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"CPANSec","orgId":"9b29abf9-4ab0-4765-b253-1875cd9b441e","dateUpdated":"2026-08-23T19:53:18.185Z"},"solutions":[{"lang":"en","value":"Upgrade to version 3.21.1 or later."}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"cpansec-cna-tool 0.1"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/08/23/5"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-08-23T23:04:55.125Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-08-25T19:32:23.591734Z","id":"CVE-2026-78183","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-25T19:32:39.393Z"}}]}}}