High
Security advisory
Apache OpenOffice opens dBase/DBF documents and shows the contents as spreadsheets. DBF are database files with data organized in fields. When reading DBF data the size of certain fields is not checked: the data is just copied into local variables. A carefully crafted document could overflow the allocated space, leading to the execution of arbitrary code by altering the contents of the program stack. This issue affects Apache OpenOffice up to and including version 4.1.10
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2021-33035
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 12:37 UTC · Revision 1
Source evidence
Apache OpenOffice opens dBase/DBF documents and shows the contents as spreadsheets. DBF are database files with data organized in fields. When reading DBF data the size of certain fields is not checked: the data is just copied into local variables. A carefully crafted document could overflow the allocated space, leading to the execution of arbitrary code by altering the contents of the program stack. This issue affects Apache OpenOffice up to and including version 4.1.10
osv:CVE-2021-33035
Complete source record
{
"id": "34510fa7f201a3888509992dbe49db5863d1c340ade993de03bbca8b995e4c23",
"url": "https://osv.dev/vulnerability/CVE-2021-33035",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2021-33035",
"summary": "Apache OpenOffice opens dBase/DBF documents and shows the contents as spreadsheets. DBF are database files with data organized in fields. When reading DBF data the size of certain fields is not checked: the data is just copied into local variables. A carefully crafted document could overflow the allocated space, leading to the execution of arbitrary code by altering the contents of the program stack. This issue affects Apache OpenOffice up to and including version 4.1.10",
"evidence": "osv:CVE-2021-33035",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2021-33035",
"aliases": [
"CVE-2021-33035"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/apache/openoffice",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "efddaef0151af3be16078cc4d88c6bae0f911e56"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"fixed": "efddaef0151af3be16078cc4d88c6bae0f911e56"
}
],
"source": "REFERENCES_COMMIT"
}
]
}
}
],
"versions": [
"AOO4110-GA",
"AOO419-RC1",
"AOO419-GA",
"AOO418-GA",
"AOO417-RC1",
"AOO417"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-33035.json",
"vanir_signatures": [
{
"id": "CVE-2021-33035-3fb9aac6",
"digest": {
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"source": "https://github.com/apache/openoffice/commit/efddaef0151af3be16078cc4d88c6bae0f911e56",
"target": {
"file": "main/connectivity/source/drivers/dbase/DTable.cxx"
},
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1"
},
{
"id": "CVE-2021-33035-4642bc14",
"digest": {
"length": 9352,
"function_hash": "80645839608673722005866249499851469281"
},
"source": "https://github.com/apache/openoffice/commit/efddaef0151af3be16078cc4d88c6bae0f911e56",
"target": {
"file": "main/connectivity/source/drivers/dbase/DTable.cxx",
"function": "ODbaseTable::UpdateBuffer"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
},
{
"id": "CVE-2021-33035-d56306b1",
"digest": {
"length": 4638,
"function_hash": "92078909980497325635747126443034244286"
},
"source": "https://github.com/apache/openoffice/commit/efddaef0151af3be16078cc4d88c6bae0f911e56",
"target": {
"file": "main/connectivity/source/drivers/dbase/DTable.cxx",
"function": "ODbaseTable::fetchRow"
},
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1"
}
],
"vanir_signatures_modified": "2026-10-20T14:04:47Z"
}
}
],
"modified": "2026-10-20T14:04:47.068296372Z",
"provider": "osv",
"references": [
"https://lists.apache.org/thread.html/r1ab8532e11f41bc7ca057ac7e39cab25f2e1f9d5f4929788ae21c8b9%40%3Cusers.openoffice.apache.org%3E",
"https://lists.apache.org/thread.html/r929c0c6a53cad64a1007b878342756badbb05ddd9b8f31a6d0b424cb%40%3Cannounce.apache.org%3E",
"https://github.com/apache/openoffice/commit/efddaef0151af3be16078cc4d88c6bae0f911e56#diff-ea66e734dd358922aba12ad4ba39c96bdc6cbde587d07dbc63d04daa0a30e90f"
],
"provider_metadata": {
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"cpes": [
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],
"vendor_product": "apache:openoffice",
"extracted_events": [
{
"range": [
{
"last_affected": "4.1.10"
}
],
"source": "CPE_RANGE"
}
]
},
{
"extracted_events": [
{
"range": [
{
"last_affected": "4.1.10"
}
],
"source": "DESCRIPTION"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2021-33035",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 388532,
"published_at": "2021-09-23T08:15:06.747+00:00"
}