UBUNTU-CVE-2026-89266

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Source
https://ubuntu.com/security/CVE-2026-89266
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89266.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-89266
Upstream
  • CVE-2026-89266
Published
2026-09-14T00:00:00Z
Modified
2026-09-14T11:17:33Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H CVSS Calculator
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

stb_vorbis through 1.22 contains a heap buffer overflow in start_decoder() where the codebook multiplicands allocation size is truncated from size_t to int. Attackers can craft a malicious Ogg Vorbis file with large entries and dimensions values to trigger out-of-bounds writes, causing process crashes or heap corruption.

References

Affected packages

Ubuntu:20.04:LTS / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20190817.1.052dce1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0",
            "binary_version": "0.0~git20190817.1.052dce1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89266.json"

Ubuntu:22.04:LTS / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20200713.b42009b+ds-1
0.0~git20210910.af1a5bc+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0",
            "binary_version": "0.0~git20210910.af1a5bc+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89266.json"

Ubuntu:24.04:LTS / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20230129.5736b15+ds-1
0.0~git20230129.5736b15+ds-1.1
0.0~git20230129.5736b15+ds-1.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0t64",
            "binary_version": "0.0~git20230129.5736b15+ds-1.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89266.json"

Ubuntu:26.04:LTS / libstb

Package

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

Affected ranges

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

Affected versions

0.*
0.0~git20241109.5c20573+ds-1
0.0~git20250907.fede005+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libstb0t64",
            "binary_version": "0.0~git20250907.fede005+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-89266.json"