CVE-2022-3303
Status: ModifiedMedium (4.7)—
A race condition flaw was found in the Linux kernel sound subsystem due to improper locking. It could lead to a NULL pointer dereference while handling the SNDCTL_DSP_SYNC ioctl. A privileged local user (root or member of the audio group) could use this flaw to crash the system, resulting in a denial of service condition
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Base score: 4.7
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.32%
- Percentile among all scored CVEs: 23
- Score date: 10/10/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-667
- CWE-362, CWE-667
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://lore.kernel.org/all/CAFcO6XN7JDM4xSXGhtusQfS2mSBcx50VJKwQpCq=WeLt57aaZA%40mail.gmail.com/
- https://www.debian.org/security/2022/dsa-5257
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://lore.kernel.org/all/CAFcO6XN7JDM4xSXGhtusQfS2mSBcx50VJKwQpCq=WeLt57aaZA%40mail.gmail.com/
- https://www.debian.org/security/2022/dsa-5257
Raw JSON (NVD)
Show
{
"id": "CVE-2022-3303",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2022-3303",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2025-05-21T15:31:25.170645Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.7,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 4.7,
"attackVector": "LOCAL",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 1
}
]
},
"affected": [
{
"source": "secalert@redhat.com",
"affectedData": [
{
"vendor": "n/a",
"product": "Linux kernel",
"versions": [
{
"status": "affected",
"version": "Fixed in kernel 6.0-rc5"
}
]
}
]
}
],
"published": "2022-09-27T23:15:15.783",
"references": [
{
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d",
"tags": [
"Exploit",
"Mailing List",
"Patch",
"Vendor Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://lore.kernel.org/all/CAFcO6XN7JDM4xSXGhtusQfS2mSBcx50VJKwQpCq=WeLt57aaZA%40mail.gmail.com/",
"source": "secalert@redhat.com"
},
{
"url": "https://www.debian.org/security/2022/dsa-5257",
"tags": [
"Third Party Advisory"
],
"source": "secalert@redhat.com"
},
{
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8423f0b6d513b259fdab9c9bf4aaa6188d054c2d",
"tags": [
"Exploit",
"Mailing List",
"Patch",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lore.kernel.org/all/CAFcO6XN7JDM4xSXGhtusQfS2mSBcx50VJKwQpCq=WeLt57aaZA%40mail.gmail.com/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.debian.org/security/2022/dsa-5257",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"description": [
{
"lang": "en",
"value": "CWE-667"
}
]
},
{
"type": "Secondary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-362"
},
{
"lang": "en",
"value": "CWE-667"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A race condition flaw was found in the Linux kernel sound subsystem due to improper locking. It could lead to a NULL pointer dereference while handling the SNDCTL_DSP_SYNC ioctl. A privileged local user (root or member of the audio group) could use this flaw to crash the system, resulting in a denial of service condition"
},
{
"lang": "es",
"value": "Se ha encontrado un fallo de condición de carrera en el subsistema de sonido del kernel de Linux debido a un bloqueo inapropiado. Podría conllevar a una desreferencia de puntero NULL mientras es manejado el ioctl SNDCTL_DSP_SYNC. Un usuario local privilegiado (root o miembro del grupo de audio) podría usar este fallo para bloquear el sistema, resultando en una situación de denegación de servicio"
}
],
"lastModified": "2026-06-17T04:59:15.873",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "87B81C9D-7173-4FFB-97BC-9C41AB20A53C",
"versionEndExcluding": "6.0"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E8BD11A3-8643-49B6-BADE-5029A0117325"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5F0AD220-F6A9-4012-8636-155F1B841FAD"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A46498B3-78E1-4623-AAE1-94D29A42BE4E"
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:6.0:rc4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F8446E87-F5F6-41CA-8201-BAE0F0CA6DD9"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73"
},
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secalert@redhat.com"
}