Medium
openexr — security advisory
OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
- Products
- openexr
- Affected versions
- 2.2.0-10ubuntu2, 2.2.0-10ubuntu2.1, 2.2.0-10ubuntu2.2, 2.2.0-10ubuntu2.3, 2.2.0-10ubuntu2.4, 2.2.0-10ubuntu2.6, 2.2.0-10ubuntu2.6+esm1, 2.2.0-10ubuntu2.6+esm2, 2.2.0-10ubuntu2.6+esm3, 2.2.0-10ubuntu2.6+esm4, 2.2.0-11.1ubuntu1, 2.2.0-11.1ubuntu1.1, 2.2.0-11.1ubuntu1.2, 2.2.0-11.1ubuntu1.3, 2.2.0-11.1ubuntu1.4, 2.2.0-11.1ubuntu1.6, 2.2.0-11.1ubuntu1.7, 2.2.0-11.1ubuntu1.8, 2.2.0-11.1ubuntu1.9, 2.2.0-11.1ubuntu1.9+esm1, 2.2.0-11ubuntu1, 2.2.0-1ubuntu3, 2.2.0-7ubuntu1, 2.2.0-9ubuntu1, 2.2.1-4.1ubuntu1, 2.3.0-6, 2.3.0-6build1, 2.3.0-6ubuntu0.1, 2.3.0-6ubuntu0.2, 2.3.0-6ubuntu0.3, 2.3.0-6ubuntu0.5, 2.3.0-6ubuntu0.5+esm1, 2.3.0-6ubuntu0.5+esm2, 2.5.4-2, 2.5.7-1, 2.5.7-1ubuntu0.1~esm1, 2.5.7-1ubuntu0.1~esm2, 3.1.13-2, 3.1.13-2build1, 3.1.13-2ubuntu0.26.04.1~esm1, 3.1.5-5.1, 3.1.5-5.1build1, 3.1.5-5.1build2, 3.1.5-5.1build3, 3.1.5-5.1ubuntu0.1~esm1, 3.4.6+ds-4ubuntu3
- Fixed versions
- Not specified
- CVEs
- CVE-2026-88384
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:30 UTC · Revision 1
Source evidence
OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.
osv:UBUNTU-CVE-2026-88384
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
openexr
Fixed versions: Not specified
Complete source record
{
"id": "46ae7da17f8a66e5f050959ed8790a9906795b49fb6d227314129f1d34ece143",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-88384",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-88384",
"summary": "OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.",
"evidence": "osv:UBUNTU-CVE-2026-88384",
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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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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"evidence": "/affected/2/versions"
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{
"value": "2.3.0-6ubuntu0.5",
"evidence": "/affected/2/versions"
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{
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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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{
"name": {
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{
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},
{
"name": {
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},
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"evidence": "/affected/6/versions"
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"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-88384",
"aliases": [
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
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{
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},
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],
"modified": "2026-10-17T13:01:15.778517839Z",
"provider": "osv",
"upstream": [
"CVE-2026-88384"
],
"references": [
"https://ubuntu.com/security/CVE-2026-88384",
"https://www.cve.org/CVERecord?id=CVE-2026-88384"
]
},
"related_cves": [
{
"value": "CVE-2026-88384",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 361421,
"published_at": "2026-09-24T17:17:00+00:00"
}