{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2024-46740", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-09-11T15:12:18.263Z", "datePublished": "2024-09-18T07:12:01.653Z", "dateUpdated": "2024-09-29T14:50:48.632Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-09-18T07:12:01.653Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix UAF caused by offsets overwrite\n\nBinder objects are processed and copied individually into the target\nbuffer during transactions. Any raw data in-between these objects is\ncopied as well. However, this raw data copy lacks an out-of-bounds\ncheck. If the raw data exceeds the data section size then the copy\noverwrites the offsets section. This eventually triggers an error that\nattempts to unwind the processed objects. However, at this point the\noffsets used to index these objects are now corrupted.\n\nUnwinding with corrupted offsets can result in decrements of arbitrary\nnodes and lead to their premature release. Other users of such nodes are\nleft with a dangling pointer triggering a use-after-free. This issue is\nmade evident by the following KASAN report (trimmed):\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c\n Write of size 4 at addr ffff47fc91598f04 by task binder-util/743\n\n CPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n _raw_spin_lock+0xe4/0x19c\n binder_free_buf+0x128/0x434\n binder_thread_write+0x8a4/0x3260\n binder_ioctl+0x18f0/0x258c\n [...]\n\n Allocated by task 743:\n __kmalloc_cache_noprof+0x110/0x270\n binder_new_node+0x50/0x700\n binder_transaction+0x413c/0x6da8\n binder_thread_write+0x978/0x3260\n binder_ioctl+0x18f0/0x258c\n [...]\n\n Freed by task 745:\n kfree+0xbc/0x208\n binder_thread_read+0x1c5c/0x37d4\n binder_ioctl+0x16d8/0x258c\n [...]\n ==================================================================\n\nTo avoid this issue, let's check that the raw data copy is within the\nboundaries of the data section."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/android/binder.c"], "versions": [{"version": "c056a6ba35e0", "lessThan": "5a32bfd23022", "status": "affected", "versionType": "git"}, {"version": "23e9d815fad8", "lessThan": "3a8154bb4ab4", "status": "affected", "versionType": "git"}, {"version": "7a9ad4aceb02", "lessThan": "eef79854a04f", "status": "affected", "versionType": "git"}, {"version": "6d98eb95b450", "lessThan": "4f79e0b80dc6", "status": "affected", "versionType": "git"}, {"version": "6d98eb95b450", "lessThan": "1f33d9f1d9ac", "status": "affected", "versionType": "git"}, {"version": "6d98eb95b450", "lessThan": "109e845c1184", "status": "affected", "versionType": "git"}, {"version": "6d98eb95b450", "lessThan": "4df153652cc4", "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/android/binder.c"], "versions": [{"version": "5.17", "status": "affected"}, {"version": "0", "lessThan": "5.17", "status": "unaffected", "versionType": "custom"}, {"version": "5.4.284", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.226", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.15.167", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.1.110", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.6.51", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.10.10", "lessThanOrEqual": "6.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "6.11", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/5a32bfd23022ffa7e152f273fa3fa29befb7d929"}, {"url": "https://git.kernel.org/stable/c/3a8154bb4ab4a01390a3abf1e6afac296e037da4"}, {"url": "https://git.kernel.org/stable/c/eef79854a04feac5b861f94d7b19cbbe79874117"}, {"url": "https://git.kernel.org/stable/c/4f79e0b80dc69bd5eaaed70f0df1b558728b4e59"}, {"url": "https://git.kernel.org/stable/c/1f33d9f1d9ac3f0129f8508925000900c2fe5bb0"}, {"url": "https://git.kernel.org/stable/c/109e845c1184c9f786d41516348ba3efd9112792"}, {"url": "https://git.kernel.org/stable/c/4df153652cc46545722879415937582028c18af5"}], "title": "binder: fix UAF caused by offsets overwrite", "x_generator": {"engine": "bippy-c9c4e1df01b2"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-29T14:50:33.335053Z", "id": "CVE-2024-46740", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-29T14:50:48.632Z"}}]}}

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Any raw data in-between these objects is\ncopied as well. However, this raw data copy lacks an out-of-bounds\ncheck. If the raw data exceeds the data section size then the copy\noverwrites the offsets section. This eventually triggers an error that\nattempts to unwind the processed objects. However, at this point the\noffsets used to index these objects are now corrupted.\n\nUnwinding with corrupted offsets can result in decrements of arbitrary\nnodes and lead to their premature release. Other users of such nodes are\nleft with a dangling pointer triggering a use-after-free. This issue is\nmade evident by the following KASAN report (trimmed):\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c\n Write of size 4 at addr ffff47fc91598f04 by task binder-util/743\n\n CPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n _raw_spin_lock+0xe4/0x19c\n binder_free_buf+0x128/0x434\n binder_thread_write+0x8a4/0x3260\n binder_ioctl+0x18f0/0x258c\n [...]\n\n Allocated by task 743:\n __kmalloc_cache_noprof+0x110/0x270\n binder_new_node+0x50/0x700\n binder_transaction+0x413c/0x6da8\n binder_thread_write+0x978/0x3260\n binder_ioctl+0x18f0/0x258c\n [...]\n\n Freed by task 745:\n kfree+0xbc/0x208\n binder_thread_read+0x1c5c/0x37d4\n binder_ioctl+0x16d8/0x258c\n [...]\n ==================================================================\n\nTo avoid this issue, let's check that the raw data copy is within the\nboundaries of the data section."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-09-18T07:12:01.653Z"}}}, "cveMetadata": {"cveId": "CVE-2024-46740", "state": "PUBLISHED", "dateUpdated": "2024-09-29T14:50:48.632Z", "dateReserved": "2024-09-11T15:12:18.263Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-09-18T07:12:01.653Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "F0B6E199-279F-4F92-B463-C5F87E230BCE", "versionEndExcluding": "5.4.284", "versionStartIncluding": "5.4.226", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "D93C7D07-3360-4012-AFCB-4F16A83F0753", "versionEndExcluding": "5.10.226", "versionStartIncluding": "5.10.157", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DC1E2D56-0897-4435-BC25-739B04462E13", "versionEndExcluding": "5.15.167", "versionStartIncluding": "5.15.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BBF34251-254C-4A5B-A072-3C3A93781706", "versionEndExcluding": "6.1.110", "versionStartIncluding": "5.17", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "E4529134-BAC4-4776-840B-304009E181A0", "versionEndExcluding": "6.6.51", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "ACDEE48C-137A-4731-90D0-A675865E1BED", "versionEndExcluding": "6.10.10", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*", "matchCriteriaId": "8B3CE743-2126-47A3-8B7C-822B502CF119", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*", "matchCriteriaId": "4DEB27E7-30AA-45CC-8934-B89263EF3551", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*", "matchCriteriaId": "E0005AEF-856E-47EB-BFE4-90C46899394D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*", "matchCriteriaId": "39889A68-6D34-47A6-82FC-CD0BF23D6754", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*", "matchCriteriaId": "B8383ABF-1457-401F-9B61-EE50F4C61F4F", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*", "matchCriteriaId": "B77A9280-37E6-49AD-B559-5B23A3B1DC3D", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix UAF caused by offsets overwrite\n\nBinder objects are processed and copied individually into the target\nbuffer during transactions. Any raw data in-between these objects is\ncopied as well. However, this raw data copy lacks an out-of-bounds\ncheck. If the raw data exceeds the data section size then the copy\noverwrites the offsets section. This eventually triggers an error that\nattempts to unwind the processed objects. However, at this point the\noffsets used to index these objects are now corrupted.\n\nUnwinding with corrupted offsets can result in decrements of arbitrary\nnodes and lead to their premature release. Other users of such nodes are\nleft with a dangling pointer triggering a use-after-free. This issue is\nmade evident by the following KASAN report (trimmed):\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c\n Write of size 4 at addr ffff47fc91598f04 by task binder-util/743\n\n CPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n _raw_spin_lock+0xe4/0x19c\n binder_free_buf+0x128/0x434\n binder_thread_write+0x8a4/0x3260\n binder_ioctl+0x18f0/0x258c\n [...]\n\n Allocated by task 743:\n __kmalloc_cache_noprof+0x110/0x270\n binder_new_node+0x50/0x700\n binder_transaction+0x413c/0x6da8\n binder_thread_write+0x978/0x3260\n binder_ioctl+0x18f0/0x258c\n [...]\n\n Freed by task 745:\n kfree+0xbc/0x208\n binder_thread_read+0x1c5c/0x37d4\n binder_ioctl+0x16d8/0x258c\n [...]\n ==================================================================\n\nTo avoid this issue, let's check that the raw data copy is within the\nboundaries of the data section."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: binder: fix UAF caused by offsets overwrite Los objetos Binder se procesan y copian individualmente en el b\u00fafer de destino durante las transacciones. Tambi\u00e9n se copian todos los datos sin procesar entre estos objetos. Sin embargo, esta copia de datos sin procesar carece de una comprobaci\u00f3n de fuera de los l\u00edmites. Si los datos sin procesar superan el tama\u00f1o de la secci\u00f3n de datos, la copia sobrescribe la secci\u00f3n de compensaciones. Esto finalmente desencadena un error que intenta desenrollar los objetos procesados. Sin embargo, en este punto, las compensaciones utilizadas para indexar estos objetos ahora est\u00e1n da\u00f1adas. El desenrollado con compensaciones da\u00f1adas puede resultar en disminuciones de nodos arbitrarios y conducir a su liberaci\u00f3n prematura. Otros usuarios de dichos nodos se quedan con un puntero colgante que activa un use after free. Este problema se hace evidente en el siguiente informe de KASAN (recortado): ===================================================================== ERROR: KASAN: slab-use-after-free en _raw_spin_lock+0xe4/0x19c Escritura de tama\u00f1o 4 en la direcci\u00f3n ffff47fc91598f04 por la tarea binder-util/743 CPU: 9 UID: 0 PID: 743 Comm: binder-util No contaminado 6.11.0-rc4 #1 Nombre del hardware: linux,dummy-virt (DT) Rastreo de llamadas: _raw_spin_lock+0xe4/0x19c binder_free_buf+0x128/0x434 binder_thread_write+0x8a4/0x3260 binder_ioctl+0x18f0/0x258c [...] Asignado por la tarea 743: __kmalloc_cache_noprof+0x110/0x270 binder_new_node+0x50/0x700 binder_transaction+0x413c/0x6da8 binder_thread_write+0x978/0x3260 binder_ioctl+0x18f0/0x258c [...] Liberado por la tarea 745: kfree+0xbc/0x208 binder_thread_read+0x1c5c/0x37d4 binder_ioctl+0x16d8/0x258c [...] ======================================================================= Para evitar este problema, verifiquemos que la copia de datos sin procesar est\u00e9 dentro de los l\u00edmites de la secci\u00f3n de datos."}], "id": "CVE-2024-46740", "lastModified": "2024-09-20T18:34:08.163", "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": "2024-09-18T08:15:03.377", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/109e845c1184c9f786d41516348ba3efd9112792"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1f33d9f1d9ac3f0129f8508925000900c2fe5bb0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3a8154bb4ab4a01390a3abf1e6afac296e037da4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4df153652cc46545722879415937582028c18af5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4f79e0b80dc69bd5eaaed70f0df1b558728b4e59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5a32bfd23022ffa7e152f273fa3fa29befb7d929"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/eef79854a04feac5b861f94d7b19cbbe79874117"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: binder: fix UAF caused by offsets overwrite", "id": "2313088", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2313088"}, "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:\nbinder: fix UAF caused by offsets overwrite\nBinder objects are processed and copied individually into the target\nbuffer during transactions. Any raw data in-between these objects is\ncopied as well. However, this raw data copy lacks an out-of-bounds\ncheck. If the raw data exceeds the data section size then the copy\noverwrites the offsets section. This eventually triggers an error that\nattempts to unwind the processed objects. However, at this point the\noffsets used to index these objects are now corrupted.\nUnwinding with corrupted offsets can result in decrements of arbitrary\nnodes and lead to their premature release. Other users of such nodes are\nleft with a dangling pointer triggering a use-after-free. This issue is\nmade evident by the following KASAN report (trimmed):\n==================================================================\nBUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x19c\nWrite of size 4 at addr ffff47fc91598f04 by task binder-util/743\nCPU: 9 UID: 0 PID: 743 Comm: binder-util Not tainted 6.11.0-rc4 #1\nHardware name: linux,dummy-virt (DT)\nCall trace:\n_raw_spin_lock+0xe4/0x19c\nbinder_free_buf+0x128/0x434\nbinder_thread_write+0x8a4/0x3260\nbinder_ioctl+0x18f0/0x258c\n[...]\nAllocated by task 743:\n__kmalloc_cache_noprof+0x110/0x270\nbinder_new_node+0x50/0x700\nbinder_transaction+0x413c/0x6da8\nbinder_thread_write+0x978/0x3260\nbinder_ioctl+0x18f0/0x258c\n[...]\nFreed by task 745:\nkfree+0xbc/0x208\nbinder_thread_read+0x1c5c/0x37d4\nbinder_ioctl+0x16d8/0x258c\n[...]\n==================================================================\nTo avoid this issue, let's check that the raw data copy is within the\nboundaries of the data section."], "name": "CVE-2024-46740", "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": "2024-09-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-46740\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-46740\nhttps://lore.kernel.org/linux-cve-announce/2024091834-CVE-2024-46740-e05a@gregkh/T"], "threat_severity": "Moderate"}