UBUNTU-CVE-2026-82820

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Source
https://ubuntu.com/security/CVE-2026-82820
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-82820
Upstream
Published
2026-08-31T19:17:00Z
Modified
2026-09-02T16:28:28Z
Severity
  • 4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
  • 2.1 (Low) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A vulnerability was found in FLVMeta up to 1.2.2. Affected is the function amfstringnew of the file src/amf.c of the component AMF String Processing. The manipulation of the argument length results in heap-based buffer overflow. The attack can be launched remotely. The exploit has been made public and could be used. The patch is identified as f412a33b9a84c2d1a9dee145a868feddbf64879e. A patch should be applied to remediate this issue. The project maintainer doubts the security impact: "While I acknowledged the bugs and provided fixes, I have yet to see any way to exploit these alleged vulnerabilities."

References

Affected packages

Ubuntu:16.04:LTS
flvmeta

Package

Name
flvmeta
Purl
pkg:deb/ubuntu/flvmeta?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.1.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.1.2-1",
            "binary_name": "flvmeta"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json"
Ubuntu:18.04:LTS
flvmeta

Package

Name
flvmeta
Purl
pkg:deb/ubuntu/flvmeta?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.2.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.1-1",
            "binary_name": "flvmeta"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json"
Ubuntu:20.04:LTS
flvmeta

Package

Name
flvmeta
Purl
pkg:deb/ubuntu/flvmeta?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.2.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.1-1",
            "binary_name": "flvmeta"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json"
Ubuntu:22.04:LTS
flvmeta

Package

Name
flvmeta
Purl
pkg:deb/ubuntu/flvmeta?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.2.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.1-1",
            "binary_name": "flvmeta"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json"
Ubuntu:24.04:LTS
flvmeta

Package

Name
flvmeta
Purl
pkg:deb/ubuntu/flvmeta?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.2.1-1
1.2.1-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.1-1build1",
            "binary_name": "flvmeta"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json"
Ubuntu:26.04:LTS
flvmeta

Package

Name
flvmeta
Purl
pkg:deb/ubuntu/flvmeta?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.2.2-1
1.2.2-1build1
1.2.2-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.2.2-2",
            "binary_name": "flvmeta"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-82820.json"