{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-47708", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-30T16:00:12.947Z", "datePublished": "2024-10-21T11:53:42.086Z", "dateUpdated": "2024-11-05T09:49:12.119Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:49:12.119Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetkit: Assign missing bpf_net_context\n\nDuring the introduction of struct bpf_net_context handling for\nXDP-redirect, the netkit driver has been missed, which also requires it\nbecause NETKIT_REDIRECT invokes skb_do_redirect() which is accessing the\nper-CPU variables. Otherwise we see the following crash:\n\n\tBUG: kernel NULL pointer dereference, address: 0000000000000038\n\tbpf_redirect()\n\tnetkit_xmit()\n\tdev_hard_start_xmit()\n\nSet the bpf_net_context before invoking netkit_xmit() program within the\nnetkit driver."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/netkit.c"], "versions": [{"version": "401cb7dae813", "lessThan": "182c6fed8c7f", "status": "affected", "versionType": "git"}, {"version": "401cb7dae813", "lessThan": "157f29152b61", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/netkit.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.2", "lessThanOrEqual": "6.11.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/182c6fed8c7f62cddce0126ec1fc0da2b700fb11"}, {"url": "https://git.kernel.org/stable/c/157f29152b61ca41809dd7ead29f5733adeced19"}], "title": "netkit: Assign missing bpf_net_context", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-47708", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-21T13:03:38.371923Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-21T13:04:19.377Z"}}]}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "AB755D26-97F4-43B6-8604-CD076811E181", "versionEndExcluding": "6.11.2", "versionStartIncluding": "6.11", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetkit: Assign missing bpf_net_context\n\nDuring the introduction of struct bpf_net_context handling for\nXDP-redirect, the netkit driver has been missed, which also requires it\nbecause NETKIT_REDIRECT invokes skb_do_redirect() which is accessing the\nper-CPU variables. Otherwise we see the following crash:\n\n\tBUG: kernel NULL pointer dereference, address: 0000000000000038\n\tbpf_redirect()\n\tnetkit_xmit()\n\tdev_hard_start_xmit()\n\nSet the bpf_net_context before invoking netkit_xmit() program within the\nnetkit driver."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netkit: Asignar bpf_net_context faltante Durante la introducci\u00f3n del manejo de struct bpf_net_context para la redirecci\u00f3n XDP, se ha omitido el controlador netkit, que tambi\u00e9n lo requiere porque NETKIT_REDIRECT invoca skb_do_redirect() que accede a las variables por CPU. De lo contrario, vemos el siguiente fallo: ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000038 bpf_redirect() netkit_xmit() dev_hard_start_xmit() Establezca bpf_net_context antes de invocar el programa netkit_xmit() dentro del controlador netkit."}], "id": "CVE-2024-47708", "lastModified": "2024-10-24T13:45:19.677", "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"}]}, "published": "2024-10-21T12:15:07.313", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/157f29152b61ca41809dd7ead29f5733adeced19"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/182c6fed8c7f62cddce0126ec1fc0da2b700fb11"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: netkit: Assign missing bpf_net_context", "id": "2320271", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320271"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnetkit: Assign missing bpf_net_context\nDuring the introduction of struct bpf_net_context handling for\nXDP-redirect, the netkit driver has been missed, which also requires it\nbecause NETKIT_REDIRECT invokes skb_do_redirect() which is accessing the\nper-CPU variables. Otherwise we see the following crash:\nBUG: kernel NULL pointer dereference, address: 0000000000000038\nbpf_redirect()\nnetkit_xmit()\ndev_hard_start_xmit()\nSet the bpf_net_context before invoking netkit_xmit() program within the\nnetkit driver."], "name": "CVE-2024-47708", "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": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-47708\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-47708\nhttps://lore.kernel.org/linux-cve-announce/2024102117-CVE-2024-47708-2b8f@gregkh/T"], "threat_severity": "Moderate"}