UBUNTU-CVE-2026-49282

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Source
https://ubuntu.com/security/CVE-2026-49282
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-49282
Upstream
Published
2026-08-14T18:17:00Z
Modified
2026-08-19T11:05:28Z
Severity
  • 5.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Capstone is a disassembly framework. Prior to version 6.0.0-Alpha9, Capstone's public cs_insn_name() API forwards caller-supplied instruction IDs directly to the selected architecture backend. Most backends validate the ID before indexing instruction-name tables, but the M68K and RISCV backends have missing or incomplete bounds checks. On a Capstone handle opened for M68K or RISCV, a caller-controlled invalid instruction ID can trigger an out-of-bounds read and crash the process. The demonstrated impact is availability loss in applications or bindings that expose instruction-name lookup to untrusted IDs. No code execution or data disclosure was demonstrated. Version 6.0.0-Alpha9 patches the issue.

References

Affected packages

Ubuntu:16.04:LTS
capstone

Package

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

Affected ranges

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

Affected versions

3.*
3.0.4-0.1
3.0.4-0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcapstone3",
            "binary_version": "3.0.4-0.2"
        },
        {
            "binary_name": "python-capstone",
            "binary_version": "3.0.4-0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json"
Ubuntu:18.04:LTS
capstone

Package

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

Affected ranges

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

Affected versions

3.*
3.0.4-3
3.0.4-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libcapstone3",
            "binary_version": "3.0.4-5"
        },
        {
            "binary_name": "python-capstone",
            "binary_version": "3.0.4-5"
        },
        {
            "binary_name": "python3-capstone",
            "binary_version": "3.0.4-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json"
Ubuntu:20.04:LTS
capstone

Package

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

Affected ranges

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

Affected versions

4.*
4.0.1+really+3.0.5-1
4.0.1+really+3.0.5-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "capstone-tool",
            "binary_version": "4.0.1+really+3.0.5-1build1"
        },
        {
            "binary_name": "libcapstone3",
            "binary_version": "4.0.1+really+3.0.5-1build1"
        },
        {
            "binary_name": "python-capstone",
            "binary_version": "4.0.1+really+3.0.5-1build1"
        },
        {
            "binary_name": "python3-capstone",
            "binary_version": "4.0.1+really+3.0.5-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json"
Ubuntu:22.04:LTS
capstone

Package

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

Affected ranges

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

Affected versions

4.*
4.0.2-3
4.0.2-3build1
4.0.2-5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "capstone-tool",
            "binary_version": "4.0.2-5"
        },
        {
            "binary_name": "libcapstone4",
            "binary_version": "4.0.2-5"
        },
        {
            "binary_name": "python3-capstone",
            "binary_version": "4.0.2-5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json"
Ubuntu:24.04:LTS
capstone

Package

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

Affected ranges

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

Affected versions

4.*
4.0.2-5
4.0.2-5ubuntu1
4.0.2-5.1
4.0.2-5.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "capstone-tool",
            "binary_version": "4.0.2-5.1build1"
        },
        {
            "binary_name": "libcapstone4",
            "binary_version": "4.0.2-5.1build1"
        },
        {
            "binary_name": "python3-capstone",
            "binary_version": "4.0.2-5.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json"
Ubuntu:26.04:LTS
capstone

Package

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

Affected ranges

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

Affected versions

5.*
5.0.6-1
5.0.6-1build1
5.0.7-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "capstone-tool",
            "binary_version": "5.0.7-2"
        },
        {
            "binary_name": "libcapstone5",
            "binary_version": "5.0.7-2"
        },
        {
            "binary_name": "python3-capstone",
            "binary_version": "5.0.7-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-49282.json"