CVE-2022-48740

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Fix this by resetting the\ncond_list_len to 0 in cond_list_destroy(), making subsequent calls a\nnoop.\n\nAlso consistently reset the cond_list pointer to NULL after freeing.\n\n[PM: fix line lengths in the description]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: selinux: corrige el doble libre de cond_list en rutas de error En la ruta de error de cond_read_list() y duplicado_policydb_cond_list(), se llama a cond_list_destroy() por segunda vez en las funciones de llamada, lo que resulta en un puntero NULL deref. Solucione este problema restableciendo cond_list_len a 0 en cond_list_destroy(), haciendo que las llamadas posteriores sean un error. Tambi\u00e9n restablezca constantemente el puntero cond_list a NULL despu\u00e9s de liberarlo. [PM: corrija la longitud de las l\u00edneas en la descripci\u00f3n]"}], "id": "CVE-2022-48740", "lastModified": "2026-06-17T05:16:03.760", "metrics": {"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"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2022-48740", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-06-20T16:02:52.249178Z", "version": "2.0.3"}}]}, "published": "2024-06-20T12:15:12.330", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/186edf7e368c40d06cf727a1ad14698ea67b74ad"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/70caa32e6d81f45f0702070c0e4dfe945e92fbd7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ed9cbf7ac0d4ed86b356e1b944304ae9ee450d4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f446089a268c8fc6908488e991d28a9b936293db"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: selinux: fix double free of cond_list on error paths", "id": "2293319", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2293319"}, "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-415", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nselinux: fix double free of cond_list on error paths\nOn error path from cond_read_list() and duplicate_policydb_cond_list()\nthe cond_list_destroy() gets called a second time in caller functions,\nresulting in NULL pointer deref. Fix this by resetting the\ncond_list_len to 0 in cond_list_destroy(), making subsequent calls a\nnoop.\nAlso consistently reset the cond_list pointer to NULL after freeing.\n[PM: fix line lengths in the description]"], "name": "CVE-2022-48740", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-06-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48740\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48740\nhttps://lore.kernel.org/linux-cve-announce/2024062002-CVE-2022-48740-a623@gregkh/T"], "threat_severity": "Moderate"}

{}