gsd-2017-8246
Vulnerability from gsd
Modified
2023-12-13 01:21
Details
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.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2017-8246", "description": "In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream-\u003eruntime-\u003eprivate_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-\u003eruntime-\u003eprivate_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used.", "id": "GSD-2017-8246" }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2017-8246" ], "details": "In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream-\u003eruntime-\u003eprivate_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-\u003eruntime-\u003eprivate_data) with a NULL check, such as msm_pcm_volume_ctl_put(), which means this freed memory could be used.", "id": "GSD-2017-8246", "modified": "2023-12-13T01:21:09.081779Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "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-\u003eruntime-\u003eprivate_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-\u003eruntime-\u003eprivate_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" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:google:android:-:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "security.cna@qualcomm.com", "ID": "CVE-2017-8246" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "In function msm_pcm_playback_close() in all Android releases from CAF using the Linux kernel, prtd is assigned substream-\u003eruntime-\u003eprivate_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-\u003eruntime-\u003eprivate_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": "en", "value": "CWE-416" } ] } ] }, "references": { "reference_data": [ { "name": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246", "refsource": "CONFIRM", "tags": [ "Broken Link" ], "url": "https://www.codeaurora.org/use-after-free-alsa-pcm-playback-kernel-module-cve-2017-8246" }, { "name": "https://source.android.com/security/bulletin/2017-07-01", "refsource": "CONFIRM", "tags": [ "Vendor Advisory" ], "url": "https://source.android.com/security/bulletin/2017-07-01" } ] } }, "impact": { "baseMetricV2": { "cvssV2": { "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, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "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 } }, "lastModifiedDate": "2020-11-09T14:17Z", "publishedDate": "2017-05-12T20:29Z" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.