fkie_cve-2021-3899
Vulnerability from fkie_nvd
Published
2024-06-03 19:15
Modified
2025-08-26 17:21
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| security@ubuntu.com | https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376 | Issue Tracking, Patch | |
| security@ubuntu.com | https://ubuntu.com/security/notices/USN-5427-1 | Vendor Advisory | |
| security@ubuntu.com | https://www.cve.org/CVERecord?id=CVE-2021-3899 | Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376 | Issue Tracking, Patch | |
| af854a3a-2127-422b-91ae-364da2661108 | https://ubuntu.com/security/notices/USN-5427-1 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://www.cve.org/CVERecord?id=CVE-2021-3899 | Third Party Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| canonical | apport | * | |
| canonical | ubuntu_linux | 18.04 | |
| canonical | ubuntu_linux | 20.04 | |
| canonical | ubuntu_linux | 21.10 | |
| canonical | ubuntu_linux | 22.04 |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:canonical:apport:*:*:*:*:*:*:*:*",
"matchCriteriaId": "694303C9-A43B-485D-BF26-33CC797B8744",
"versionEndExcluding": "2.21.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "23A7C53F-B80F-4E6A-AFA9-58EEA84BE11D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "902B8056-9E37-443B-8905-8AA93E2447FB",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:21.10:*:*:*:*:*:*:*",
"matchCriteriaId": "AAE4D2D0-CEEB-416F-8BC5-A7987DF56190",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:*",
"matchCriteriaId": "359012F1-2C63-415A-88B8-6726A87830DE",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "There is a race condition in the \u0027replaced executable\u0027 detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root."
},
{
"lang": "es",
"value": "Existe una condici\u00f3n de ejecuci\u00f3n en la detecci\u00f3n de \u0027ejecutable reemplazado\u0027 que, con la configuraci\u00f3n local correcta, permite a un atacante ejecutar c\u00f3digo arbitrario como root."
}
],
"id": "CVE-2021-3899",
"lastModified": "2025-08-26T17:21:04.500",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
},
"published": "2024-06-03T19:15:08.940",
"references": [
{
"source": "security@ubuntu.com",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376"
},
{
"source": "security@ubuntu.com",
"tags": [
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],
"url": "https://ubuntu.com/security/notices/USN-5427-1"
},
{
"source": "security@ubuntu.com",
"tags": [
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],
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3899"
},
{
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{
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],
"sourceIdentifier": "security@ubuntu.com",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-367"
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary"
}
]
}
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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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