CVE-2022-48863

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Como resultado, cuando llama a kfree(dup), la variable dup contiene NULL. Encontrado por el proyecto de verificaci\u00f3n de controladores de Linux (linuxtesting.org) con SVACE."}], "id": "CVE-2022-48863", "lastModified": "2026-06-17T05:16:24.717", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48863", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:25:25.668277Z", "version": "2.0.3"}}]}, "published": "2024-07-16T13:15:13.163", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/640445d6fc059d4514ffea79eb4196299e0e2d0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7777b1f795af1bb43867375d8a776080111aae1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3d5fcc6cf2ecbba5a269631092570aa285a24cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c6a502c2299941c8326d029cfc8a3bc8a4607ad5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/640445d6fc059d4514ffea79eb4196299e0e2d0f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7777b1f795af1bb43867375d8a776080111aae1b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a3d5fcc6cf2ecbba5a269631092570aa285a24cb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c6a502c2299941c8326d029cfc8a3bc8a4607ad5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mISDN: Fix memory leak in dsp_pipeline_build()", "id": "2298207", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298207"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-401", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmISDN: Fix memory leak in dsp_pipeline_build()\ndsp_pipeline_build() allocates dup pointer by kstrdup(cfg),\nbut then it updates dup variable by strsep(&dup, \"|\").\nAs a result when it calls kfree(dup), the dup variable contains NULL.\nFound by Linux Driver Verification project (linuxtesting.org) with SVACE.", "A vulnerability was found in the dsp_pipeline_build function in the Linux kernel's mISDN driver, which can cause a memory leak when the function allocates memory with kstrdup and subsequently modifies the pointer with strsep, leading to a scenario where kfree is called on a NULL pointer."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2022-48863", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48863\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48863\nhttps://git.kernel.org/stable/c/640445d6fc059d4514ffea79eb4196299e0e2d0f\nhttps://git.kernel.org/stable/c/7777b1f795af1bb43867375d8a776080111aae1b\nhttps://git.kernel.org/stable/c/a3d5fcc6cf2ecbba5a269631092570aa285a24cb\nhttps://git.kernel.org/stable/c/c6a502c2299941c8326d029cfc8a3bc8a4607ad5"], "threat_severity": "Moderate"}

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