UnratedFix available
gdb: Fix of CVE-2026-13732
Type: advisorySources: OSV
- CVE-2026-13732: Fix out-of-bounds write in the STABS parser's read_member_functions(); the destructor/non-destructor split mis-updated the linked-list predecessor pointer, so destructors stayed in the list while the length counter was decremented, causing a negative-index write past the start of the member-function array when a crafted ELF with .stab/.stabstr sections was loaded.
- Products
- gdb, gdb-doc, gdb-gdbserver, gdb-headless, gdb-minimal
- Affected versions
- Not specified
- Fixed versions
- 10.2-10.el9_2.tuxcare.els2
- CVEs
- CVE-2026-13732
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:38 UTC · Revision 1
Source evidence
- CVE-2026-13732: Fix out-of-bounds write in the STABS parser's read_member_functions(); the destructor/non-destructor split mis-updated the linked-list predecessor pointer, so destructors stayed in the list while the length counter was decremented, causing a negative-index write past the start of the member-function array when a crafted ELF with .stab/.stabstr sections was loaded.
osv:CLSA-2026-1791547259
gdb
Fixed versions: 10.2-10.el9_2.tuxcare.els2
gdb-doc
Fixed versions: 10.2-10.el9_2.tuxcare.els2
gdb-gdbserver
Fixed versions: 10.2-10.el9_2.tuxcare.els2
gdb-headless
Fixed versions: 10.2-10.el9_2.tuxcare.els2
gdb-minimal
Fixed versions: 10.2-10.el9_2.tuxcare.els2
Complete source record
{
"id": "20fcc615995b092860c618ca52ad577d585f5c21b20bbb104dda01675a39e6f1",
"url": "https://osv.dev/vulnerability/CLSA-2026-1791547259",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "gdb: Fix of CVE-2026-13732",
"summary": "- CVE-2026-13732: Fix out-of-bounds write in the STABS parser's read_member_functions(); the destructor/non-destructor split mis-updated the linked-list predecessor pointer, so destructors stayed in the list while the length counter was decremented, causing a negative-index write past the start of the member-function array when a crafted ELF with .stab/.stabstr sections was loaded.",
"evidence": "osv:CLSA-2026-1791547259",
"products": [
{
"name": {
"value": "gdb",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.2-10.el9_2.tuxcare.els2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gdb-doc",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.2-10.el9_2.tuxcare.els2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gdb-gdbserver",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.2-10.el9_2.tuxcare.els2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gdb-headless",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.2-10.el9_2.tuxcare.els2",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "gdb-minimal",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "10.2-10.el9_2.tuxcare.els2",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1791547259",
"aliases": [
"CLSA-2026-1791547259"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.2-10.el9_2.tuxcare.els2"
}
]
}
],
"package": {
"name": "gdb",
"purl": "pkg:rpm/tuxcare/gdb?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791547259.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.2-10.el9_2.tuxcare.els2"
}
]
}
],
"package": {
"name": "gdb-doc",
"purl": "pkg:rpm/tuxcare/gdb-doc?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791547259.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.2-10.el9_2.tuxcare.els2"
}
]
}
],
"package": {
"name": "gdb-gdbserver",
"purl": "pkg:rpm/tuxcare/gdb-gdbserver?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791547259.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.2-10.el9_2.tuxcare.els2"
}
]
}
],
"package": {
"name": "gdb-headless",
"purl": "pkg:rpm/tuxcare/gdb-headless?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791547259.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "10.2-10.el9_2.tuxcare.els2"
}
]
}
],
"package": {
"name": "gdb-minimal",
"purl": "pkg:rpm/tuxcare/gdb-minimal?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1791547259.json"
}
}
],
"modified": "2026-10-26T09:30:08.084522941Z",
"provider": "osv",
"upstream": [
"CVE-2026-13732"
],
"references": [
"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1791547259.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-13732"
]
},
"related_cves": [
{
"value": "CVE-2026-13732",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 446864,
"published_at": "2026-10-09T12:01:10+00:00"
}