Vulnerabilites related to avast - avg_antivirus
CVE-2023-5760 (GCVE-0-2023-5760)
Vulnerability from cvelistv5
Published
2023-11-08 16:36
Modified
2024-09-03 20:20
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Summary
A time-of-check to time-of-use (TOCTOU) bug in handling of IOCTL (input/output control) requests. This TOCTOU bug leads to an out-of-bounds write vulnerability which can be further exploited, allowing an attacker to gain full local privilege escalation on the system.This issue affects Avast/Avg Antivirus: 23.8.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Avast/AVG | Avast/Avg Antivirus |
Version: 23.8 |
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CVE-2022-4173 (GCVE-0-2022-4173)
Vulnerability from cvelistv5
Published
2022-12-05 23:15
Modified
2025-04-14 17:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-269 - Improper Privilege Management
Summary
A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| NortonLifeLock | Avast and AVG Antivirus |
Version: 20.5 < |
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CVE-2020-13657 (GCVE-0-2020-13657)
Vulnerability from cvelistv5
Published
2020-06-29 17:51
Modified
2024-08-04 12:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.
References
| ▼ | URL | Tags |
|---|---|---|
| https://forum.avast.com/index.php?topic=234638.0 | x_refsource_CONFIRM | |
| https://forum.avast.com/index.php?topic=232423.0 | x_refsource_CONFIRM |
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Vulnerability from fkie_nvd
Published
2020-06-29 18:15
Modified
2024-11-21 05:01
Severity ?
Summary
An elevation of privilege vulnerability exists in Avast Free Antivirus and AVG AntiVirus Free before 20.4 due to improperly handling hard links. The vulnerability allows local users to take control of arbitrary files.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | https://forum.avast.com/index.php?topic=232423.0 | Release Notes, Vendor Advisory | |
| cve@mitre.org | https://forum.avast.com/index.php?topic=234638.0 | Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://forum.avast.com/index.php?topic=232423.0 | Release Notes, Vendor Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://forum.avast.com/index.php?topic=234638.0 | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| avast | avg_antivirus | * | |
| avast | free_antivirus | * |
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Vulnerability from fkie_nvd
Published
2023-11-08 17:15
Modified
2024-11-21 08:42
Severity ?
8.2 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A time-of-check to time-of-use (TOCTOU) bug in handling of IOCTL (input/output control) requests. This TOCTOU bug leads to an out-of-bounds write vulnerability which can be further exploited, allowing an attacker to gain full local privilege escalation on the system.This issue affects Avast/Avg Antivirus: 23.8.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| avast | avg_antivirus | 23.8 |
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"exploitabilityScore": 1.5,
"impactScore": 6.0,
"source": "security@nortonlifelock.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.0,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-11-08T17:15:07.993",
"references": [
{
"source": "security@nortonlifelock.com",
"tags": [
"Third Party Advisory"
],
"url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
}
],
"sourceIdentifier": "security@nortonlifelock.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-367"
}
],
"source": "security@nortonlifelock.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-367"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2022-12-06 00:15
Modified
2024-11-21 07:34
Severity ?
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| avast | avast | * | |
| avast | avg_antivirus | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:avast:avast:*:*:*:*:*:*:*:*",
"matchCriteriaId": "4C07A2CF-FBEC-42E5-AC35-693730D025C2",
"versionEndIncluding": "22.9",
"versionStartIncluding": "20.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:avast:avg_antivirus:*:*:*:*:*:*:*:*",
"matchCriteriaId": "36663122-612D-49E6-9AA4-7E618D014C64",
"versionEndIncluding": "22.9",
"versionStartIncluding": "20.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability within the malware removal functionality of Avast and AVG Antivirus allowed an attacker with write access to the filesystem, to escalate his privileges in certain scenarios. The issue was fixed with Avast and AVG Antivirus version 22.10.\n"
},
{
"lang": "es",
"value": "Una vulnerabilidad dentro de la funcionalidad de eliminaci\u00f3n de malware de Avast y AVG Antivirus permiti\u00f3 a un atacante con acceso de escritura al sistema de archivos aumentar sus privilegios en ciertos escenarios. El problema se solucion\u00f3 con Avast y AVG Antivirus versi\u00f3n 22.10."
}
],
"id": "CVE-2022-4173",
"lastModified": "2024-11-21T07:34:43.013",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.3,
"impactScore": 5.9,
"source": "security@nortonlifelock.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2022-12-06T00:15:10.303",
"references": [
{
"source": "security@nortonlifelock.com",
"tags": [
"Third Party Advisory"
],
"url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://support.norton.com/sp/static/external/tools/security-advisories.html"
}
],
"sourceIdentifier": "security@nortonlifelock.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-269"
}
],
"source": "security@nortonlifelock.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-269"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}