Medium
suricata — security advisory
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.
- Products
- suricata
- Affected versions
- 1:6.0.4-2, 1:6.0.4-3, 1:7.0.0-2, 1:7.0.10-1, 1:7.0.2-1, 1:7.0.2-1build1, 1:7.0.3-1build1, 1:7.0.3-1build3, 1:7.0.8-2, 1:8.0.1-3build1, 1:8.0.2-1, 1:8.0.2-1build1, 1:8.0.3-1, 1:8.0.5-1, 1:8.0.6-1, 2.0.10-1, 2.0.10-2, 2.0.11-1, 2.0.8-1build1, 2.0.9-1, 3.0-1, 3.2-2ubuntu3
- Fixed versions
- Not specified
- CVEs
- CVE-2025-29917
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:47 UTC · Revision 1
Source evidence
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.
osv:UBUNTU-CVE-2025-29917
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
suricata
Fixed versions: Not specified
Complete source record
{
"id": "ba368b02a8174f57dc0effa52b0f5e60b2877341d35d12c0ad9dbde28c8901bc",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-29917",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-29917",
"summary": "Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.",
"evidence": "osv:UBUNTU-CVE-2025-29917",
"products": [
{
"name": {
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},
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{
"value": "2.0.8-1build1",
"evidence": "/affected/0/versions"
},
{
"value": "2.0.9-1",
"evidence": "/affected/0/versions"
},
{
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"evidence": "/affected/0/versions"
},
{
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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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"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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}
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},
{
"name": {
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},
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"affected_versions": [
{
"value": "1:8.0.3-1",
"evidence": "/affected/5/versions"
},
{
"value": "1:8.0.5-1",
"evidence": "/affected/5/versions"
},
{
"value": "1:8.0.6-1",
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},
{
"name": {
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},
"prerequisites": [],
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{
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"evidence": "/affected/6/versions"
},
{
"value": "1:8.0.1-3build1",
"evidence": "/affected/6/versions"
},
{
"value": "1:8.0.2-1",
"evidence": "/affected/6/versions"
},
{
"value": "1:8.0.2-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "1:8.0.3-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2025-29917",
"aliases": [
"UBUNTU-CVE-2025-29917"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
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"events": [
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}
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"package": {
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"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
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"2.0.9-1",
"2.0.10-1",
"2.0.10-2",
"2.0.11-1",
"3.0-1"
],
"database_specific": {
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},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "suricata",
"binary_version": "3.0-1"
}
]
}
},
{
"ranges": [
{
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]
}
],
"package": {
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"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"3.2-2ubuntu3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29917.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libhtp-0.5.23-1",
"binary_version": "3.2-2ubuntu3"
},
{
"binary_name": "suricata",
"binary_version": "3.2-2ubuntu3"
},
{
"binary_name": "suricata-hyperscan",
"binary_version": "3.2-2ubuntu3"
},
{
"binary_name": "suricata-oinkmaster",
"binary_version": "3.2-2ubuntu3"
}
]
}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1:6.0.4-2",
"1:6.0.4-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-29917.json"
},
"ecosystem_specific": {
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{
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"binary_version": "1:6.0.4-3"
}
]
}
},
{
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"package": {
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"purl": "pkg:deb/ubuntu/suricata?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1:7.0.0-2",
"1:7.0.2-1",
"1:7.0.2-1build1",
"1:7.0.3-1build1",
"1:7.0.3-1build3"
],
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},
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"ecosystem": "Ubuntu:25.10"
},
"versions": [
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"1:7.0.10-1"
],
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},
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{
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],
"modified": "2026-10-17T12:57:26.963912165Z",
"provider": "osv",
"upstream": [
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],
"references": [
"https://ubuntu.com/security/CVE-2025-29917",
"https://www.cve.org/CVERecord?id=CVE-2025-29917"
]
},
"related_cves": [
{
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"evidence": "/upstream"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357500,
"published_at": "2025-04-10T21:15:00+00:00"
}