Medium
libdbi-perl — security advisory
DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv. When casting to SQL_NUMERIC, sql_type_cast_svpv passes the string pointer and length of the SV to grok_number without stringifying it first. An integer (IV) or floating-point (NV) value has no valid string pointer, so grok_number reads from an invalid address, triggering a segmentation fault. This is reachable in Perl using the sql_type_cast function: my $num = 42; DBI::sql_type_cast( $num, DBI::SQL_NUMERIC, 0 );
- Products
- libdbi-perl
- Affected versions
- 1.627-1, 1.628-1, 1.630-1, 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, 1.633-1, 1.634-1, 1.634-1build1, 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, 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, 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, 1.643-3build2, 1.643-3build3, 1.643-3ubuntu0.1, 1.643-3ubuntu0.3, 1.643-3ubuntu0.4, 1.643-4, 1.643-4build1, 1.643-4build2, 1.643-4build3, 1.643-4ubuntu0.1, 1.643-4ubuntu0.3, 1.643-4ubuntu0.4, 1.647-1, 1.647-1build1, 1.647-1ubuntu0.26.04.1, 1.647-1ubuntu0.26.04.3, 1.647-1ubuntu0.26.04.4, 1.648-1, 1.651-1, 1.652-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-88815
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:30 UTC · Revision 1
Source evidence
DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv. When casting to SQL_NUMERIC, sql_type_cast_svpv passes the string pointer and length of the SV to grok_number without stringifying it first. An integer (IV) or floating-point (NV) value has no valid string pointer, so grok_number reads from an invalid address, triggering a segmentation fault. This is reachable in Perl using the sql_type_cast function: my $num = 42; DBI::sql_type_cast( $num, DBI::SQL_NUMERIC, 0 );
osv:UBUNTU-CVE-2026-88815
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
libdbi-perl
Fixed versions: Not specified
Complete source record
{
"id": "a16946b35181552286db30eb8b2fae8bd1d370944603fccce24212882bb62bf4",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-88815",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-88815",
"summary": "DBI versions before 1.654 for Perl incorrectly treat numeric values as strings in sql_type_cast_svpv. When casting to SQL_NUMERIC, sql_type_cast_svpv passes the string pointer and length of the SV to grok_number without stringifying it first. An integer (IV) or floating-point (NV) value has no valid string pointer, so grok_number reads from an invalid address, triggering a segmentation fault. This is reachable in Perl using the sql_type_cast function: my $num = 42; DBI::sql_type_cast( $num, DBI::SQL_NUMERIC, 0 );",
"evidence": "osv:UBUNTU-CVE-2026-88815",
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{
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"evidence": "/affected/0/versions"
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"affected_versions": [
{
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},
{
"value": "1.642-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "1.643-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.643-1ubuntu0.1",
"evidence": "/affected/3/versions"
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{
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"evidence": "/affected/3/versions"
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{
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{
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},
{
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"evidence": "/affected/4/versions"
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{
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{
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{
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},
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"affected_versions": [
{
"value": "1.643-4",
"evidence": "/affected/5/versions"
},
{
"value": "1.643-4build1",
"evidence": "/affected/5/versions"
},
{
"value": "1.643-4build2",
"evidence": "/affected/5/versions"
},
{
"value": "1.643-4build3",
"evidence": "/affected/5/versions"
},
{
"value": "1.643-4ubuntu0.1",
"evidence": "/affected/5/versions"
},
{
"value": "1.643-4ubuntu0.3",
"evidence": "/affected/5/versions"
},
{
"value": "1.643-4ubuntu0.4",
"evidence": "/affected/5/versions"
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]
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{
"name": {
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"evidence": "/affected/6/package/name"
},
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{
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{
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"evidence": "/affected/6/versions"
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{
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{
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{
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{
"value": "1.647-1ubuntu0.26.04.1",
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{
"value": "1.647-1ubuntu0.26.04.3",
"evidence": "/affected/7/versions"
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{
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],
"severity": "medium",
"structured": {
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"aliases": [
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"metrics": [
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},
"versions": [
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"1.628-1",
"1.630-1",
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"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"
],
"database_specific": {
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},
"ecosystem_specific": {
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{
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"1.634-1",
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"versions": [
"1.637-1",
"1.639-1",
"1.640-1",
"1.640-1ubuntu0.1",
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"1.640-1ubuntu0.3",
"1.640-1ubuntu0.3+esm1",
"1.640-1ubuntu0.3+esm3",
"1.640-1ubuntu0.3+esm4"
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},
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"versions": [
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"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"
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},
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{
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"package": {
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"versions": [
"1.643-3build2",
"1.643-3build3",
"1.643-3ubuntu0.1",
"1.643-3ubuntu0.3",
"1.643-3ubuntu0.4"
],
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},
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"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1.643-4",
"1.643-4build1",
"1.643-4build2",
"1.643-4build3",
"1.643-4ubuntu0.1",
"1.643-4ubuntu0.3",
"1.643-4ubuntu0.4"
],
"database_specific": {
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},
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{
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{
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"ecosystem": "Ubuntu:26.10"
},
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"1.647-1build1",
"1.648-1",
"1.651-1",
"1.652-2"
],
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},
"ecosystem_specific": {
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{
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}
]
}
},
{
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{
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],
"package": {
"name": "libdbi-perl",
"purl": "pkg:deb/ubuntu/libdbi-perl?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
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"1.647-1build1",
"1.647-1ubuntu0.26.04.1",
"1.647-1ubuntu0.26.04.3",
"1.647-1ubuntu0.26.04.4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-88815.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libdbi-perl",
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}
]
}
}
],
"modified": "2026-10-17T13:01:15.762146480Z",
"provider": "osv",
"upstream": [
"CVE-2026-88815"
],
"references": [
"https://ubuntu.com/security/CVE-2026-88815",
"https://www.cve.org/CVERecord?id=CVE-2026-88815"
]
},
"related_cves": [
{
"value": "CVE-2026-88815",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361420,
"published_at": "2026-09-28T17:17:00+00:00"
}