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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0D327234-5D4A-43DC-A6DF-BCA0CEBEC039", "versionEndExcluding": "5.16.11", "versionStartIncluding": "5.16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: fix use-after-free in ocelot_vlan_del()\n\nocelot_vlan_member_del() will free the struct ocelot_bridge_vlan, so if\nthis is the same as the port's pvid_vlan which we access afterwards,\nwhat we're accessing is freed memory.\n\nFix the bug by determining whether to clear ocelot_port->pvid_vlan prior\nto calling ocelot_vlan_member_del()."}, {"lang": "es", "value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: net: mscc: ocelot: fix use-after-free en ocelot_vlan_del() ocelot_vlan_member_del() liberar\u00e1 la estructura ocelot_bridge_vlan, por lo que si es la misma que la pvid_vlan del puerto al que accedemos despu\u00e9s, a lo que accedemos es a la memoria liberada. Corrija el error determinando si se debe borrar ocelot_port->pvid_vlan antes de llamar a ocelot_vlan_member_del()."}], "id": "CVE-2022-48779", "lastModified": "2024-11-21T07:34:00.403", "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"}]}, "published": "2024-07-16T12:15:03.077", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/c98bed60cdd7f22237ae256cc9c1c3087206b8a2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/ef57640575406f57f5b3393cf57f457b0ace837e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/c98bed60cdd7f22237ae256cc9c1c3087206b8a2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/ef57640575406f57f5b3393cf57f457b0ace837e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()", "id": "2298115", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2298115"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-416", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnet: mscc: ocelot: fix use-after-free in ocelot_vlan_del()\nocelot_vlan_member_del() will free the struct ocelot_bridge_vlan, so if\nthis is the same as the port's pvid_vlan which we access afterwards,\nwhat we're accessing is freed memory.\nFix the bug by determining whether to clear ocelot_port->pvid_vlan prior\nto calling ocelot_vlan_member_del().", "A flaw was found in the Linux kernel in the net ocelot driver, which involved a use-after-free issue in the ocelot_vlan_del() function. The flaw occurred when the ocelot_vlan_member_del() function freed the struct ocelot_bridge_vlan, still referenced by the port's Primary VLAN ID (PVID)."], "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-2022-48779", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "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": "2024-07-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-48779\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-48779\nhttps://lore.kernel.org/linux-cve-announce/2024071632-CVE-2022-48779-94bd@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}