FKIE_CVE-2020-27795
Vulnerability from fkie_nvd - Published: 2022-08-19 23:15 - Updated: 2026-06-17 03:09
Severity
Summary
A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c, when command "adf" has no or wrong argument, anal_fcn_data (core, input + 1) --> RAnalFunction *fcn = r_anal_get_fcn_in (core->anal, core->offset, -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn).
References
| URL | Tags | ||
|---|---|---|---|
| secalert@redhat.com | https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22 | Patch, Third Party Advisory | |
| secalert@redhat.com | https://github.com/radareorg/radare2/issues/16215 | Exploit, Issue Tracking, Patch, Third Party Advisory | |
| secalert@redhat.com | https://github.com/radareorg/radare2/pull/16230 | Issue Tracking, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22 | Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/radareorg/radare2/issues/16215 | Exploit, Issue Tracking, Patch, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://github.com/radareorg/radare2/pull/16230 | Issue Tracking, Patch, Third Party Advisory |
{
"affected": [
{
"affectedData": [
{
"product": "radare2",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Fixed in v4.4.0."
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:radare:radare2:*:*:*:*:*:*:*:*",
"matchCriteriaId": "EEE8DA49-FB7A-4416-8942-56DD67E62CD9",
"versionEndExcluding": "4.4.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A segmentation fault was discovered in radare2 with adf command. In libr/core/cmd_anal.c, when command \"adf\" has no or wrong argument, anal_fcn_data (core, input + 1) --\u003e RAnalFunction *fcn = r_anal_get_fcn_in (core-\u003eanal, core-\u003eoffset, -1); returns null pointer for fcn causing segmentation fault later in ensure_fcn_range (fcn)."
},
{
"lang": "es",
"value": "Se ha detectado un fallo de segmentaci\u00f3n en radare2 con el comando adf. En el archivo libr/core/cmd_anal.c, cuando el comando \"adf\" no presenta argumento o es err\u00f3neo, anal_fcn_data (core, input + 1) --) RAnalFunction *fcn = r_anal_get_fcn_in (core-)anal, core-)offset, -1); devuelve un puntero nulo para fcn causando un fallo de segmentaci\u00f3n posteriormente en ensure_fcn_range (fcn)."
}
],
"id": "CVE-2020-27795",
"lastModified": "2026-06-17T03:09:39.380",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-08-19T23:15:08.487",
"references": [
{
"source": "secalert@redhat.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22"
},
{
"source": "secalert@redhat.com",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/radareorg/radare2/issues/16215"
},
{
"source": "secalert@redhat.com",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/radareorg/radare2/pull/16230"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/radareorg/radare2/issues/16215"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/radareorg/radare2/pull/16230"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-908"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-908"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
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|---|
Nomenclature
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vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
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They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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