CVE-2017-8246

{"containers": {"cna": {"affected": [{"product": "Android for MSM, Firefox OS for MSM, QRD Android", "vendor": "Qualcomm, Inc.", "versions": [{"status": "affected", "version": "All Android releases from CAF using the Linux kernel"}]}], "datePublic": "2017-05-01T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used."}], "problemTypes": [{"descriptions": [{"description": "Use-After-Free in ALSA PCM Playback Kernel Module (CVE-2017-8246)", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-07-12T15:57:01.000Z", "orgId": "2cfc7d3e-20d3-47ac-8db7-1b7285aff15f", "shortName": "qualcomm"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://source.android.com/security/bulletin/2017-07-01"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "product-security@qualcomm.com", "ID": "CVE-2017-8246", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Android for MSM, Firefox OS for MSM, QRD Android", "version": {"version_data": [{"version_value": "All Android releases from CAF using the Linux kernel"}]}}]}, "vendor_name": "Qualcomm, Inc."}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Use-After-Free in ALSA PCM Playback Kernel Module (CVE-2017-8246)"}]}]}, "references": {"reference_data": [{"name": "https://source.android.com/security/bulletin/2017-07-01", "refsource": "CONFIRM", "url": "https://source.android.com/security/bulletin/2017-07-01"}, {"name": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246", "refsource": "CONFIRM", "url": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T16:27:23.233Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://source.android.com/security/bulletin/2017-07-01"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246"}]}]}, "cveMetadata": {"assignerOrgId": "2cfc7d3e-20d3-47ac-8db7-1b7285aff15f", "assignerShortName": "qualcomm", "cveId": "CVE-2017-8246", "datePublished": "2017-05-12T20:00:00.000Z", "dateReserved": "2017-04-25T00:00:00.000Z", "dateUpdated": "2024-08-05T16:27:23.233Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Android for MSM, Firefox OS for MSM, QRD Android", "vendor": "Qualcomm, Inc.", "versions": [{"status": "affected", "version": "All Android releases from CAF using the Linux kernel"}]}], "source": "product-security@qualcomm.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "matchCriteriaId": "F8B9FEC8-73B6-43B8-B24E-1F7C20D91D26", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream->runtime->private_data. Later, prtd is freed. However, prtd is not sanitized and set to NULL, resulting in a dangling pointer. There are other functions that access the same memory (substream->runtime->private_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used."}, {"lang": "es", "value": "En la funci\u00f3n msm_pcm_playback_close() en todas las versiones de Android de CAF usando el kernel de Linux, prtd es asignado a substream-)runtime-)private_data. M\u00e1s tarde, prtd es liberado. Sin embargo, prtd no est\u00e1 saneado y se ajusta a NULL, resultando en un puntero colgante. Hay otras funciones que acceden a la misma memoria (substream-)runtime-)private_data) con una comprobaci\u00f3n NULL, tal y como en la funci\u00f3n msm_pcm_volume_ctl_put(), lo que significa que se puede usar esta memoria liberada."}], "id": "CVE-2017-8246", "lastModified": "2026-06-17T01:26:02.450", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "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"}]}, "published": "2017-05-12T20:29:00.437", "references": [{"source": "product-security@qualcomm.com", "tags": ["Vendor Advisory"], "url": "https://source.android.com/security/bulletin/2017-07-01"}, {"source": "product-security@qualcomm.com", "tags": ["Broken Link"], "url": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://source.android.com/security/bulletin/2017-07-01"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246"}], "sourceIdentifier": "product-security@qualcomm.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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