UBUNTU-CVE-2026-53703

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Source
https://ubuntu.com/security/CVE-2026-53703
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-53703
Upstream
  • CVE-2026-53703
Published
2026-06-15T20:16:00Z
Modified
2026-06-24T11:01:55.505453450Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability was found in the GStreamer RealMedia demuxer (gst-plugins-ugly). When processing a RealMedia (.rm) file, the demuxer parses MDPR (media properties) chunks to configure audio streams. For audio stream header versions 4 and 5, the parser reads fields such as codec type, packet size, sample rate, channel count, and extra codec data length from fixed offsets within the chunk without first checking that the chunk contains enough data. If a malicious file provides an MDPR chunk that is too small to contain a complete audio stream header, the parser reads beyond the end of the buffer. This can cause the application to crash. In some cases, bytes read past the buffer boundary may be incorporated into stream metadata, which could result in limited information disclosure.

References

Affected packages

Ubuntu:16.04:LTS
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.8.3-1ubuntu0.1"
        },
        {
            "binary_name": "gstreamer1.0-plugins-ugly-amr",
            "binary_version": "1.8.3-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"
Ubuntu:18.04:LTS
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.14.5-0ubuntu1~18.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"
Ubuntu:20.04:LTS
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.16.1-1
1.16.1-1build1
1.16.2-1
1.16.2-2
1.16.2-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.16.2-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"
Ubuntu:22.04:LTS
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.18.5-1
1.20.0-1
1.20.0-1build1
1.20.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.20.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"
Ubuntu:24.04:LTS
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.24.1-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"
Ubuntu:25.10
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.26.6-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"
Ubuntu:26.04:LTS
gst-plugins-ugly1.0

Package

Name
gst-plugins-ugly1.0
Purl
pkg:deb/ubuntu/gst-plugins-ugly1.0?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gstreamer1.0-plugins-ugly",
            "binary_version": "1.28.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53703.json"