UBUNTU-CVE-2018-20457

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Source
https://ubuntu.com/security/CVE-2018-20457
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20457.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-20457
Upstream
Published
2018-12-25T19:29:00Z
Modified
2026-05-20T16:03:36Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In radare2 through 3.1.3, the assemble function inside libr/asm/p/asm_arm_cs.c allows attackers to cause a denial-of-service (application crash via an r_num_calc out-of-bounds read) by crafting an arm assembly input because a loop uses an incorrect index in armass.c and certain length validation is missing in armass64.c, a related issue to CVE-2018-20459.

References

Affected packages

Ubuntu:16.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?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/2018/UBUNTU-CVE-2018-20457.json"

Ubuntu:Pro:18.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fbionic

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/2018/UBUNTU-CVE-2018-20457.json"

Ubuntu:Pro:24.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fnoble

Affected ranges

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

Affected versions

5.*
5.5.0+dfsg-1ubuntu1
5.5.0+dfsg-1.1ubuntu2
5.5.0+dfsg-1.1ubuntu3
5.5.0+dfsg-1.1ubuntu3+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-5.0.0t64",
            "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20457.json"

Ubuntu:25.10 / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=questing

Affected ranges

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

Affected versions

5.*
5.9.8+dfsg-2
5.9.8+dfsg-2ubuntu0.25.10.1
5.9.8+dfsg-2ubuntu0.25.10.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-5.0.0t64",
            "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
        },
        {
            "binary_name": "radare2",
            "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20457.json"

Ubuntu:26.04:LTS / radare2

Package

Name
radare2
Purl
pkg:deb/ubuntu/radare2?arch=source&distro=resolute

Affected ranges

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

Affected versions

5.*
5.9.8+dfsg-2
6.*
6.0.4+dfsg-1
6.0.7+ds-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libradare2-6.0.0t64",
            "binary_version": "6.0.7+ds-1"
        },
        {
            "binary_name": "libradare2-common",
            "binary_version": "6.0.7+ds-1"
        },
        {
            "binary_name": "radare2",
            "binary_version": "6.0.7+ds-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20457.json"