fkie_cve-2021-32614
Vulnerability from fkie_nvd
Published
2021-05-26 22:15
Modified
2024-11-21 06:07
Severity ?
Summary
A flaw was found in dmg2img through 20170502. fill_mishblk() does not check the length of the read buffer, and copy 0xCC bytes from it. The length of the buffer is controlled by an attacker. By providing a length smaller than 0xCC, memcpy reaches out of the malloc'ed bound. This possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| patrick@puiterwijk.org | https://bugzilla.redhat.com/show_bug.cgi?id=1959911 | Issue Tracking, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugzilla.redhat.com/show_bug.cgi?id=1959911 | Issue Tracking, Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| dmg2img_project | dmg2img | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:dmg2img_project:dmg2img:*:*:*:*:*:*:*:*",
"matchCriteriaId": "8133DF55-ED81-4B8B-90BC-1268C506E7E4",
"versionEndIncluding": "20170502",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in dmg2img through 20170502. fill_mishblk() does not check the length of the read buffer, and copy 0xCC bytes from it. The length of the buffer is controlled by an attacker. By providing a length smaller than 0xCC, memcpy reaches out of the malloc\u0027ed bound. This possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution."
},
{
"lang": "es",
"value": "Se encontr\u00f3 un fallo en dmg2img versiones hasta 20170502. La funci\u00f3n fill_mishblk() no comprueba la longitud del b\u00fafer de lectura y copia 0xCC bytes de \u00e9l.\u0026#xa0;Un atacante controla la longitud del b\u00fafer.\u0026#xa0;Al proporcionar una longitud menor que 0xCC, memcpy sale del l\u00edmite malloc\u0027ed.\u0026#xa0;Esto posiblemente conlleva a un filtrado de informaci\u00f3n sobre el dise\u00f1o de la memoria en los datos.\u0026#xa0;Esto puede ser usado en una cadena de vulnerabilidad para alcanzar la ejecuci\u00f3n del c\u00f3digo"
}
],
"id": "CVE-2021-32614",
"lastModified": "2024-11-21T06:07:23.007",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
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},
"published": "2021-05-26T22:15:08.193",
"references": [
{
"source": "patrick@puiterwijk.org",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1959911"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1959911"
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],
"sourceIdentifier": "patrick@puiterwijk.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-125"
}
],
"source": "patrick@puiterwijk.org",
"type": "Secondary"
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"description": [
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"value": "CWE-125"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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