{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-49987", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-10-21T12:17:06.054Z", "datePublished": "2024-10-21T18:02:31.209Z", "dateUpdated": "2024-11-05T09:52:58.789Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:52:58.789Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpftool: Fix undefined behavior in qsort(NULL, 0, ...)\n\nWhen netfilter has no entry to display, qsort is called with\nqsort(NULL, 0, ...). This results in undefined behavior, as UBSan\nreports:\n\nnet.c:827:2: runtime error: null pointer passed as argument 1, which is declared to never be null\n\nAlthough the C standard does not explicitly state whether calling qsort\nwith a NULL pointer when the size is 0 constitutes undefined behavior,\nSection 7.1.4 of the C standard (Use of library functions) mentions:\n\n\"Each of the following statements applies unless explicitly stated\notherwise in the detailed descriptions that follow: If an argument to a\nfunction has an invalid value (such as a value outside the domain of\nthe function, or a pointer outside the address space of the program, or\na null pointer, or a pointer to non-modifiable storage when the\ncorresponding parameter is not const-qualified) or a type (after\npromotion) not expected by a function with variable number of\narguments, the behavior is undefined.\"\n\nTo avoid this, add an early return when nf_link_info is NULL to prevent\ncalling qsort with a NULL pointer."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["tools/bpf/bpftool/net.c"], "versions": [{"version": "1da177e4c3f4", "lessThan": "c2d9f9a7837a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "2e0f6f33f2aa", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "c208b02827eb", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f4", "lessThan": "f04e2ad394e2", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["tools/bpf/bpftool/net.c"], "versions": [{"version": "6.6.55", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.10.14", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.11.3", "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/c2d9f9a7837ab29ccae0c42252f17d436bf0a501"}, {"url": "https://git.kernel.org/stable/c/2e0f6f33f2aa87493b365a38a8fd87b8854b7734"}, {"url": "https://git.kernel.org/stable/c/c208b02827eb642758cef65641995fd3f38c89af"}, {"url": "https://git.kernel.org/stable/c/f04e2ad394e2755d0bb2d858ecb5598718bf00d5"}], "title": "bpftool: Fix undefined behavior in qsort(NULL, 0, ...)", "x_generator": {"engine": "bippy-9e1c9544281a"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-49987", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:31:44.384847Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:38:43.446Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2024-49987", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-10-22T13:31:44.384847Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-10-22T13:31:48.029Z"}}], "cna": {"title": "bpftool: Fix undefined behavior in qsort(NULL, 0, ...)", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "1da177e4c3f4", "lessThan": "c2d9f9a7837a", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "2e0f6f33f2aa", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "c208b02827eb", "versionType": "git"}, {"status": "affected", "version": "1da177e4c3f4", "lessThan": "f04e2ad394e2", "versionType": "git"}], "programFiles": ["tools/bpf/bpftool/net.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "unaffected", "version": "6.6.55", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.10.14", "versionType": "semver", "lessThanOrEqual": "6.10.*"}, {"status": "unaffected", "version": "6.11.3", "versionType": "semver", "lessThanOrEqual": "6.11.*"}, {"status": "unaffected", "version": "6.12-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["tools/bpf/bpftool/net.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/c2d9f9a7837ab29ccae0c42252f17d436bf0a501"}, {"url": "https://git.kernel.org/stable/c/2e0f6f33f2aa87493b365a38a8fd87b8854b7734"}, {"url": "https://git.kernel.org/stable/c/c208b02827eb642758cef65641995fd3f38c89af"}, {"url": "https://git.kernel.org/stable/c/f04e2ad394e2755d0bb2d858ecb5598718bf00d5"}], "x_generator": {"engine": "bippy-9e1c9544281a"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpftool: Fix undefined behavior in qsort(NULL, 0, ...)\n\nWhen netfilter has no entry to display, qsort is called with\nqsort(NULL, 0, ...). This results in undefined behavior, as UBSan\nreports:\n\nnet.c:827:2: runtime error: null pointer passed as argument 1, which is declared to never be null\n\nAlthough the C standard does not explicitly state whether calling qsort\nwith a NULL pointer when the size is 0 constitutes undefined behavior,\nSection 7.1.4 of the C standard (Use of library functions) mentions:\n\n\"Each of the following statements applies unless explicitly stated\notherwise in the detailed descriptions that follow: If an argument to a\nfunction has an invalid value (such as a value outside the domain of\nthe function, or a pointer outside the address space of the program, or\na null pointer, or a pointer to non-modifiable storage when the\ncorresponding parameter is not const-qualified) or a type (after\npromotion) not expected by a function with variable number of\narguments, the behavior is undefined.\"\n\nTo avoid this, add an early return when nf_link_info is NULL to prevent\ncalling qsort with a NULL pointer."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-05T09:52:58.789Z"}}}, "cveMetadata": {"cveId": "CVE-2024-49987", "state": "PUBLISHED", "dateUpdated": "2024-11-05T09:52:58.789Z", "dateReserved": "2024-10-21T12:17:06.054Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-10-21T18:02:31.209Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "8B527B5F-BDDA-424E-932E-16FCAAB575E2", "versionEndExcluding": "6.6.55", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4C16BCE0-FFA0-4599-BE0A-1FD65101C021", "versionEndExcluding": "6.10.14", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "54D9C704-D679-41A7-9C40-10A6B1E7FFE9", "versionEndExcluding": "6.11.3", "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\nbpftool: Fix undefined behavior in qsort(NULL, 0, ...)\n\nWhen netfilter has no entry to display, qsort is called with\nqsort(NULL, 0, ...). This results in undefined behavior, as UBSan\nreports:\n\nnet.c:827:2: runtime error: null pointer passed as argument 1, which is declared to never be null\n\nAlthough the C standard does not explicitly state whether calling qsort\nwith a NULL pointer when the size is 0 constitutes undefined behavior,\nSection 7.1.4 of the C standard (Use of library functions) mentions:\n\n\"Each of the following statements applies unless explicitly stated\notherwise in the detailed descriptions that follow: If an argument to a\nfunction has an invalid value (such as a value outside the domain of\nthe function, or a pointer outside the address space of the program, or\na null pointer, or a pointer to non-modifiable storage when the\ncorresponding parameter is not const-qualified) or a type (after\npromotion) not expected by a function with variable number of\narguments, the behavior is undefined.\"\n\nTo avoid this, add an early return when nf_link_info is NULL to prevent\ncalling qsort with a NULL pointer."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpftool: corrige comportamiento indefinido en qsort(NULL, 0, ...) Cuando netfilter no tiene ninguna entrada para mostrar, se llama a qsort con qsort(NULL, 0, ...). Esto da como resultado un comportamiento indefinido, como informa UBSan: net.c:827:2: error en tiempo de ejecuci\u00f3n: puntero nulo pasado como argumento 1, que se declara que nunca ser\u00e1 nulo Aunque el est\u00e1ndar C no indica expl\u00edcitamente si llamar a qsort con un puntero NULL cuando el tama\u00f1o es 0 constituye un comportamiento indefinido, la Secci\u00f3n 7.1.4 del est\u00e1ndar C (Uso de funciones de librer\u00eda) menciona: \"Cada una de las siguientes afirmaciones se aplica a menos que se indique expl\u00edcitamente lo contrario en las descripciones detalladas que siguen: si un argumento de una funci\u00f3n tiene un valor no v\u00e1lido (como un valor fuera del dominio de la funci\u00f3n, o un puntero fuera del espacio de direcciones del programa, o un puntero nulo, o un puntero a almacenamiento no modificable cuando el par\u00e1metro correspondiente no est\u00e1 calificado como constante) o un tipo (despu\u00e9s de la promoci\u00f3n) no esperado por una funci\u00f3n con un n\u00famero variable de argumentos, el comportamiento es indefinido\". Para evitar esto, agregue un retorno temprano cuando nf_link_info sea NULL para evitar llamar a qsort con un puntero NULL."}], "id": "CVE-2024-49987", "lastModified": "2024-10-28T16:23:44.477", "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": "2024-10-21T18:15:19.087", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2e0f6f33f2aa87493b365a38a8fd87b8854b7734"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c208b02827eb642758cef65641995fd3f38c89af"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/c2d9f9a7837ab29ccae0c42252f17d436bf0a501"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f04e2ad394e2755d0bb2d858ecb5598718bf00d5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: bpftool: Fix undefined behavior in qsort(NULL, 0, ...)", "id": "2320535", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2320535"}, "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:\nbpftool: Fix undefined behavior in qsort(NULL, 0, ...)\nWhen netfilter has no entry to display, qsort is called with\nqsort(NULL, 0, ...). This results in undefined behavior, as UBSan\nreports:\nnet.c:827:2: runtime error: null pointer passed as argument 1, which is declared to never be null\nAlthough the C standard does not explicitly state whether calling qsort\nwith a NULL pointer when the size is 0 constitutes undefined behavior,\nSection 7.1.4 of the C standard (Use of library functions) mentions:\n\"Each of the following statements applies unless explicitly stated\notherwise in the detailed descriptions that follow: If an argument to a\nfunction has an invalid value (such as a value outside the domain of\nthe function, or a pointer outside the address space of the program, or\na null pointer, or a pointer to non-modifiable storage when the\ncorresponding parameter is not const-qualified) or a type (after\npromotion) not expected by a function with variable number of\narguments, the behavior is undefined.\"\nTo avoid this, add an early return when nf_link_info is NULL to prevent\ncalling qsort with a NULL pointer."], "name": "CVE-2024-49987", "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": "2024-10-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-49987\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-49987\nhttps://lore.kernel.org/linux-cve-announce/2024102136-CVE-2024-49987-e897@gregkh/T"], "threat_severity": "Moderate"}