UBUNTU-CVE-2021-32495

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Source
https://ubuntu.com/security/CVE-2021-32495
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-32495
Upstream
Published
2023-07-07T19:15:00Z
Modified
2026-04-22T12:54:18Z
Severity
  • 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory afterwards. This will allow attackers to cause denial of service.

References

Affected packages

Ubuntu:16.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2@0.9.6-3.1ubuntu1?arch=source&distro=xenial

Affected ranges

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

Affected versions

0.*
0.9.6-3.1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-0.9.6",
            "binary_version": "0.9.6-3.1ubuntu1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "0.9.6-3.1ubuntu1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "0.9.6-3.1ubuntu1"
        },
        {
            "binary_name": "radare2-plugins",
            "binary_version": "0.9.6-3.1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json"

Ubuntu:Pro:18.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2@2.3.0+dfsg-2ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*
1.6.0+dfsg-1
2.*
2.0.0+dfsg-1
2.1.0+dfsg-1
2.3.0+dfsg-1
2.3.0+dfsg-2
2.3.0+dfsg-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-2.3",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json"

Ubuntu:Pro:20.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2@4.2.1+dfsg-2ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

3.*
3.2.1+dfsg-5build1
4.*
4.0.0+dfsg-1
4.2.1+dfsg-1
4.2.1+dfsg-2
4.2.1+dfsg-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-4.2.1",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-32495.json"