HighFix available
gst-plugins-ugly1.0 — security advisory
A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.
- Products
- gst-plugins-ugly1.0
- Affected versions
- 1.12.3-1, 1.12.3-1build1, 1.12.4-1, 1.12.4-1build1, 1.13.1-1, 1.13.91-1, 1.14.0-1, 1.14.1-1~ubuntu18.04.1, 1.14.4-1~ubuntu18.04.1, 1.14.5-0ubuntu1~18.04.1, 1.16.1-1, 1.16.1-1build1, 1.16.2-1, 1.16.2-2, 1.16.2-2build1, 1.18.5-1, 1.20.0-1, 1.20.0-1build1, 1.20.1-1, 1.22.10-1, 1.22.5-1, 1.22.6-1, 1.22.7-1, 1.22.8-1, 1.24.1-1, 1.24.1-1build1, 1.26.0-1, 1.26.1-1, 1.26.2-1, 1.26.3-1, 1.26.3-3, 1.26.3-4, 1.26.4-1, 1.26.5-1, 1.26.6-1, 1.26.7-1build1, 1.27.2-1, 1.27.90-1, 1.28.0-1, 1.28.1-1, 1.28.2-1, 1.6.0-1ubuntu1, 1.6.1-1ubuntu1, 1.6.2-1ubuntu1, 1.7.1-1ubuntu1, 1.7.2-1ubuntu1, 1.7.90-1ubuntu1, 1.7.91-1ubuntu1, 1.8.0-1ubuntu1, 1.8.1-1ubuntu0.1, 1.8.2-1ubuntu0.1, 1.8.3-1ubuntu0.1, 1.8.3-1ubuntu0.1+esm1
- Fixed versions
- 1.14.5-0ubuntu1~18.04.1+esm1, 1.16.2-2ubuntu0.1~esm1, 1.20.1-1ubuntu0.1~esm1, 1.24.1-1ubuntu0.1~esm1, 1.28.2-1ubuntu0.1~esm1, 1.8.3-1ubuntu0.1+esm2
- CVEs
- CVE-2026-53704
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 10:04 UTC · Revision 1
Source evidence
A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.
osv:UBUNTU-CVE-2026-53704
gst-plugins-ugly1.0
Fixed versions: 1.8.3-1ubuntu0.1+esm2
gst-plugins-ugly1.0
Fixed versions: 1.14.5-0ubuntu1~18.04.1+esm1
gst-plugins-ugly1.0
Fixed versions: 1.16.2-2ubuntu0.1~esm1
gst-plugins-ugly1.0
Fixed versions: 1.20.1-1ubuntu0.1~esm1
gst-plugins-ugly1.0
Fixed versions: 1.24.1-1ubuntu0.1~esm1
gst-plugins-ugly1.0
Fixed versions: Not specified
gst-plugins-ugly1.0
Fixed versions: 1.28.2-1ubuntu0.1~esm1
Complete source record
{
"id": "81384a7ef77f68d1e47c325a7dbfdd70ae9a5393e58f76f018606dbebbcb2922",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-53704",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-53704",
"summary": "A flaw was found in GStreamer's RealMedia demuxer in the gst-plugins-ugly package. When processing a RealMedia file containing a specially crafted FILEINFO metadata section, the demuxer parses variable-name and variable-value pairs using re_skip_pascal_string() without validating that offsets remain within the mapped buffer. Additionally, the element count controlling the parsing loop is read from attacker-controlled data without validation, which can cause an infinite loop. A crafted RealMedia file can cause the application to crash, hang, or potentially read limited adjacent memory contents.",
"evidence": "osv:UBUNTU-CVE-2026-53704",
"products": [
{
"name": {
"value": "gst-plugins-ugly1.0",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
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"evidence": "/affected/0/ranges"
}
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"affected_versions": [
{
"value": "1.6.0-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6.1-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6.2-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.7.1-1ubuntu1",
"evidence": "/affected/0/versions"
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{
"value": "1.7.2-1ubuntu1",
"evidence": "/affected/0/versions"
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{
"value": "1.7.90-1ubuntu1",
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{
"value": "1.7.91-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.8.0-1ubuntu1",
"evidence": "/affected/0/versions"
},
{
"value": "1.8.1-1ubuntu0.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.8.2-1ubuntu0.1",
"evidence": "/affected/0/versions"
},
{
"value": "1.8.3-1ubuntu0.1",
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{
"value": "1.8.3-1ubuntu0.1+esm1",
"evidence": "/affected/0/versions"
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},
{
"name": {
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{
"value": "1.14.5-0ubuntu1~18.04.1+esm1",
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{
"value": "1.12.3-1",
"evidence": "/affected/1/versions"
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{
"value": "1.12.3-1build1",
"evidence": "/affected/1/versions"
},
{
"value": "1.12.4-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.12.4-1build1",
"evidence": "/affected/1/versions"
},
{
"value": "1.13.1-1",
"evidence": "/affected/1/versions"
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{
"value": "1.13.91-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.14.0-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.14.1-1~ubuntu18.04.1",
"evidence": "/affected/1/versions"
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{
"value": "1.14.4-1~ubuntu18.04.1",
"evidence": "/affected/1/versions"
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{
"value": "1.14.5-0ubuntu1~18.04.1",
"evidence": "/affected/1/versions"
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]
},
{
"name": {
"value": "gst-plugins-ugly1.0",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.16.2-2ubuntu0.1~esm1",
"evidence": "/affected/2/ranges"
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],
"affected_versions": [
{
"value": "1.16.1-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.16.1-1build1",
"evidence": "/affected/2/versions"
},
{
"value": "1.16.2-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.16.2-2",
"evidence": "/affected/2/versions"
},
{
"value": "1.16.2-2build1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "gst-plugins-ugly1.0",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.20.1-1ubuntu0.1~esm1",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": [
{
"value": "1.18.5-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.20.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.20.0-1build1",
"evidence": "/affected/3/versions"
},
{
"value": "1.20.1-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "gst-plugins-ugly1.0",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.24.1-1ubuntu0.1~esm1",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": [
{
"value": "1.22.5-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.6-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.7-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.8-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.10-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.24.1-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.24.1-1build1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "gst-plugins-ugly1.0",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.26.0-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.1-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.2-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.3-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.3-3",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.3-4",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.4-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.5-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.26.6-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "gst-plugins-ugly1.0",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.28.2-1ubuntu0.1~esm1",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": [
{
"value": "1.26.6-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.26.7-1build1",
"evidence": "/affected/6/versions"
},
{
"value": "1.27.2-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.27.90-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.28.0-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.28.1-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.28.2-1",
"evidence": "/affected/6/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-53704",
"aliases": [
"UBUNTU-CVE-2026-53704"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.8.3-1ubuntu0.1+esm2"
}
]
}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=esm-apps-legacy%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
"1.6.0-1ubuntu1",
"1.6.1-1ubuntu1",
"1.6.2-1ubuntu1",
"1.7.1-1ubuntu1",
"1.7.2-1ubuntu1",
"1.7.90-1ubuntu1",
"1.7.91-1ubuntu1",
"1.8.0-1ubuntu1",
"1.8.1-1ubuntu0.1",
"1.8.2-1ubuntu0.1",
"1.8.3-1ubuntu0.1",
"1.8.3-1ubuntu0.1+esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.8.3-1ubuntu0.1+esm2"
},
{
"binary_name": "gstreamer1.0-plugins-ugly-amr",
"binary_version": "1.8.3-1ubuntu0.1+esm2"
}
],
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
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}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
"1.12.3-1",
"1.12.3-1build1",
"1.12.4-1",
"1.12.4-1build1",
"1.13.1-1",
"1.13.91-1",
"1.14.0-1",
"1.14.1-1~ubuntu18.04.1",
"1.14.4-1~ubuntu18.04.1",
"1.14.5-0ubuntu1~18.04.1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.14.5-0ubuntu1~18.04.1+esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.16.2-2ubuntu0.1~esm1"
}
]
}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"versions": [
"1.16.1-1",
"1.16.1-1build1",
"1.16.2-1",
"1.16.2-2",
"1.16.2-2build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.16.2-2ubuntu0.1~esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
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{
"introduced": "0"
},
{
"fixed": "1.20.1-1ubuntu0.1~esm1"
}
]
}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"versions": [
"1.18.5-1",
"1.20.0-1",
"1.20.0-1build1",
"1.20.1-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.20.1-1ubuntu0.1~esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.24.1-1ubuntu0.1~esm1"
}
]
}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"1.22.5-1",
"1.22.6-1",
"1.22.7-1",
"1.22.8-1",
"1.22.10-1",
"1.24.1-1",
"1.24.1-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.24.1-1ubuntu0.1~esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"1.26.0-1",
"1.26.1-1",
"1.26.2-1",
"1.26.3-1",
"1.26.3-3",
"1.26.3-4",
"1.26.4-1",
"1.26.5-1",
"1.26.6-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.26.6-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.28.2-1ubuntu0.1~esm1"
}
]
}
],
"package": {
"name": "gst-plugins-ugly1.0",
"purl": "pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=esm-apps%2Fresolute",
"ecosystem": "Ubuntu:Pro:26.04:LTS"
},
"versions": [
"1.26.6-1",
"1.26.7-1build1",
"1.27.2-1",
"1.27.90-1",
"1.28.0-1",
"1.28.1-1",
"1.28.2-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53704.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gstreamer1.0-plugins-ugly",
"binary_version": "1.28.2-1ubuntu0.1~esm1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
}
],
"modified": "2026-10-08T19:48:25.279525847Z",
"provider": "osv",
"upstream": [
"CVE-2026-53704"
],
"references": [
"https://ubuntu.com/security/CVE-2026-53704",
"https://www.cve.org/CVERecord?id=CVE-2026-53704",
"https://gstreamer.freedesktop.org/security/sa-2026-0042.html",
"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11825",
"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11826",
"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11831",
"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/11832",
"https://ubuntu.com/security/notices/USN-8896-1"
]
},
"related_cves": [
{
"value": "CVE-2026-53704",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 104556,
"published_at": "2026-06-15T20:16:00+00:00"
}