UBUNTU-CVE-2020-27795

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Source
https://ubuntu.com/security/CVE-2020-27795
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-27795.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-27795
Related
Published
2022-08-19T23:15:00Z
Modified
2025-06-03T17:34:43Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A segmentation fault was discovered in radare2 with adf command. In libr/core/cmdanal.c, when command "adf" has no or wrong argument, analfcndata (core, input + 1) --> RAnalFunction *fcn = ranalgetfcnin (core->anal, core->offset, -1); returns null pointer for fcn causing segmentation fault later in ensurefcn_range (fcn).

References

Affected packages

Ubuntu:Pro:16.04:LTS / radare2

Package

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

Affected ranges

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

Affected versions

0.*

0.9.6-3.1ubuntu1

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:18.04:LTS / radare2

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:Pro:20.04:LTS / radare2

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown 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

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:24.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2@5.5.0+dfsg-1ubuntu1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.5.0+dfsg-1ubuntu1

Ecosystem specific 

{
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_name": "libradare2-5.0.0",
            "binary_version": "5.5.0+dfsg-1ubuntu1"
        },
        {
            "binary_name": "libradare2-5.0.0-dbgsym",
            "binary_version": "5.5.0+dfsg-1ubuntu1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "5.5.0+dfsg-1ubuntu1"
        },
        {
            "binary_name": "libradare2-dev",
            "binary_version": "5.5.0+dfsg-1ubuntu1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "5.5.0+dfsg-1ubuntu1"
        },
        {
            "binary_name": "radare2-dbgsym",
            "binary_version": "5.5.0+dfsg-1ubuntu1"
        }
    ],
    "availability": "No subscription required"
}