Medium
oggvideotools — security advisory
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
- Products
- oggvideotools
- Affected versions
- 0.8a-4, 0.8a-7, 0.9.1-4, 0.9.1-5, 0.9.1-5.1, 0.9.1-5build1, 0.9.1-6, 0.9.1-7, 0.9.1-7.1, 0.9.1-7build1
- Fixed versions
- Not specified
- CVEs
- CVE-2020-21723
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 00:57 UTC · Revision 1
Source evidence
A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.
osv:UBUNTU-CVE-2020-21723
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
oggvideotools
Fixed versions: Not specified
Complete source record
{
"id": "91fc5575dacd564a42244d48cc8c0dca0a18c1f082e30c70b872c0dc58f50d27",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-21723",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2020-21723",
"summary": "A Segmentation Fault issue discovered StreamSerializer::extractStreams function in streamSerializer.cpp in oggvideotools 0.9.1 allows remote attackers to cause a denial of service (crash) via opening of crafted ogg file.",
"evidence": "osv:UBUNTU-CVE-2020-21723",
"products": [
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.8a-4",
"evidence": "/affected/0/versions"
},
{
"value": "0.8a-7",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-4",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-5",
"evidence": "/affected/2/versions"
},
{
"value": "0.9.1-5build1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-5.1",
"evidence": "/affected/3/versions"
},
{
"value": "0.9.1-6",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-6",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-7",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-7.1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "oggvideotools",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.9.1-7",
"evidence": "/affected/7/versions"
},
{
"value": "0.9.1-7build1",
"evidence": "/affected/7/versions"
},
{
"value": "0.9.1-7.1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2020-21723",
"aliases": [
"UBUNTU-CVE-2020-21723"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"0.8a-4",
"0.8a-7"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.8a-7"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"0.9.1-4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"0.9.1-5",
"0.9.1-5build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-5build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"0.9.1-5.1",
"0.9.1-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-6"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"0.9.1-6"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-6"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"0.9.1-7"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-7"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"0.9.1-7.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-7.1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "oggvideotools",
"purl": "pkg:deb/ubuntu/oggvideotools?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"0.9.1-7",
"0.9.1-7build1",
"0.9.1-7.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-21723.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "oggvideotools",
"binary_version": "0.9.1-7.1"
}
]
}
}
],
"modified": "2026-10-17T12:56:18.773652590Z",
"provider": "osv",
"upstream": [
"CVE-2020-21723"
],
"references": [
"https://ubuntu.com/security/CVE-2020-21723",
"https://sourceforge.net/p/oggvideotools/bugs/10/",
"https://github.com/xiaoxiongwang/security/tree/master/oggvideotools#segv-occurs-in-function-streamserializerextractstreams-in-streamserializercpp",
"https://www.cve.org/CVERecord?id=CVE-2020-21723"
]
},
"related_cves": [
{
"value": "CVE-2020-21723",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 355212,
"published_at": "2023-08-22T19:16:00+00:00"
}