{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47288", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-21T13:27:52.129Z", "datePublished": "2024-05-21T14:34:51.776Z", "dateUpdated": "2024-11-04T12:03:01.539Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-11-04T12:03:01.539Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()\n\nFix an 11-year old bug in ngene_command_config_free_buf() while\naddressing the following warnings caught with -Warray-bounds:\n\narch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\narch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\n\nThe problem is that the original code is trying to copy 6 bytes of\ndata into a one-byte size member _config_ of the wrong structue\nFW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a\nlegitimate compiler warning because memcpy() overruns the length\nof &com.cmd.ConfigureBuffers.config. It seems that the right\nstructure is FW_CONFIGURE_FREE_BUFFERS, instead, because it contains\n6 more members apart from the header _hdr_. Also, the name of\nthe function ngene_command_config_free_buf() suggests that the actual\nintention is to ConfigureFreeBuffers, instead of ConfigureBuffers\n(which takes place in the function ngene_command_config_buf(), above).\n\nFix this by enclosing those 6 members of struct FW_CONFIGURE_FREE_BUFFERS\ninto new struct config, and use &com.cmd.ConfigureFreeBuffers.config as\nthe destination address, instead of &com.cmd.ConfigureBuffers.config,\nwhen calling memcpy().\n\nThis also helps with the ongoing efforts to globally enable\n-Warray-bounds and get us closer to being able to tighten the\nFORTIFY_SOURCE routines on memcpy()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/pci/ngene/ngene-core.c", "drivers/media/pci/ngene/ngene.h"], "versions": [{"version": "dae52d009fc9", "lessThan": "4487b968e5ea", "status": "affected", "versionType": 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warnings caught with -Warray-bounds:\n\narch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\narch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\n\nThe problem is that the original code is trying to copy 6 bytes of\ndata into a one-byte size member _config_ of the wrong structue\nFW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a\nlegitimate compiler warning because memcpy() overruns the length\nof &com.cmd.ConfigureBuffers.config. It seems that the right\nstructure is FW_CONFIGURE_FREE_BUFFERS, instead, because it contains\n6 more members apart from the header _hdr_. Also, the name of\nthe function ngene_command_config_free_buf() suggests that the actual\nintention is to ConfigureFreeBuffers, instead of ConfigureBuffers\n(which takes place in the function ngene_command_config_buf(), above).\n\nFix this by enclosing those 6 members of struct FW_CONFIGURE_FREE_BUFFERS\ninto new struct config, and use &com.cmd.ConfigureFreeBuffers.config as\nthe destination address, instead of &com.cmd.ConfigureBuffers.config,\nwhen calling memcpy().\n\nThis also helps with the ongoing efforts to globally enable\n-Warray-bounds and get us closer to being able to tighten the\nFORTIFY_SOURCE routines on memcpy()."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:05:20.262Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47288", "state": "PUBLISHED", "dateUpdated": "2024-08-04T05:32:08.191Z", "dateReserved": "2024-05-21T13:27:52.129Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-05-21T14:34:51.776Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()\n\nFix an 11-year old bug in ngene_command_config_free_buf() while\naddressing the following warnings caught with -Warray-bounds:\n\narch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\narch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\n\nThe problem is that the original code is trying to copy 6 bytes of\ndata into a one-byte size member _config_ of the wrong structue\nFW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a\nlegitimate compiler warning because memcpy() overruns the length\nof &com.cmd.ConfigureBuffers.config. It seems that the right\nstructure is FW_CONFIGURE_FREE_BUFFERS, instead, because it contains\n6 more members apart from the header _hdr_. Also, the name of\nthe function ngene_command_config_free_buf() suggests that the actual\nintention is to ConfigureFreeBuffers, instead of ConfigureBuffers\n(which takes place in the function ngene_command_config_buf(), above).\n\nFix this by enclosing those 6 members of struct FW_CONFIGURE_FREE_BUFFERS\ninto new struct config, and use &com.cmd.ConfigureFreeBuffers.config as\nthe destination address, instead of &com.cmd.ConfigureBuffers.config,\nwhen calling memcpy().\n\nThis also helps with the ongoing efforts to globally enable\n-Warray-bounds and get us closer to being able to tighten the\nFORTIFY_SOURCE routines on memcpy()."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: medios: ngene: corrige un error fuera de los l\u00edmites en ngene_command_config_free_buf(). Corrige un error de hace 11 a\u00f1os en ngene_command_config_free_buf() mientras se solucionan las siguientes advertencias detectadas con -Warray-bounds: arch/alpha/include/asm/string.h:22:16: advertencia: el desplazamiento '__builtin_memcpy' [12, 16] del objeto en 'com' est\u00e1 fuera de los l\u00edmites del subobjeto referenciado 'config' con tipo 'car\u00e1cter sin firmar ' en el desplazamiento 10 [-Warray-bounds] arch/x86/include/asm/string_32.h:182:25: advertencia: el desplazamiento '__builtin_memcpy' [12, 16] del objeto en 'com' est\u00e1 fuera de los l\u00edmites de subobjeto referenciado 'config' con tipo 'unsigned char' en el desplazamiento 10 [-Warray-bounds] El problema es que el c\u00f3digo original est\u00e1 intentando copiar 6 bytes de datos en un miembro de tama\u00f1o de un byte _config_ de la estructura incorrecta FW_CONFIGURE_BUFFERS, en una sola llamada a memcpy(). Esto provoca una advertencia leg\u00edtima del compilador porque memcpy() sobrepasa la longitud de &com.cmd.ConfigureBuffers.config. Parece que la estructura correcta es FW_CONFIGURE_FREE_BUFFERS, porque contiene 6 miembros m\u00e1s adem\u00e1s del encabezado _hdr_. Adem\u00e1s, el nombre de la funci\u00f3n ngene_command_config_free_buf() sugiere que la intenci\u00f3n real es ConfigureFreeBuffers, en lugar de ConfigureBuffers (que tiene lugar en la funci\u00f3n ngene_command_config_buf(), arriba). Solucione este problema encerrando esos 6 miembros de la estructura FW_CONFIGURE_FREE_BUFFERS en una nueva configuraci\u00f3n de estructura y use &com.cmd.ConfigureFreeBuffers.config como direcci\u00f3n de destino, en lugar de &com.cmd.ConfigureBuffers.config, al llamar a memcpy(). Esto tambi\u00e9n ayuda con los esfuerzos continuos para habilitar globalmente -Warray-bounds y acercarnos a poder ajustar las rutinas FORTIFY_SOURCE en memcpy()."}], "id": "CVE-2021-47288", "lastModified": "2024-05-21T16:54:26.047", "metrics": {}, "published": "2024-05-21T15:15:16.867", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4487b968e5eacd02c493303dc2b61150bb7fe4b2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8d4abca95ecc82fc8c41912fa0085281f19cc29f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b9a178f189bb6d75293573e181928735f5e3e070"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c6ddeb63dd543b5474b0217c4e47538b7ffd7686"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e617fa62f6cf859a7b042cdd6c73af905ff8fca3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e818f2ff648581a6c553ae2bebc5dcef9a8bb90c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e991457afdcb5f4dbc5bc9d79eaf775be33e7092"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ec731c6ef564ee6fc101fc5d73e3a3a953d09a00"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()", "id": "2282510", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2282510"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmedia: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()\nFix an 11-year old bug in ngene_command_config_free_buf() while\naddressing the following warnings caught with -Warray-bounds:\narch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\narch/x86/include/asm/string_32.h:182:25: warning: '__builtin_memcpy' offset [12, 16] from the object at 'com' is out of the bounds of referenced subobject 'config' with type 'unsigned char' at offset 10 [-Warray-bounds]\nThe problem is that the original code is trying to copy 6 bytes of\ndata into a one-byte size member _config_ of the wrong structue\nFW_CONFIGURE_BUFFERS, in a single call to memcpy(). This causes a\nlegitimate compiler warning because memcpy() overruns the length\nof &com.cmd.ConfigureBuffers.config. It seems that the right\nstructure is FW_CONFIGURE_FREE_BUFFERS, instead, because it contains\n6 more members apart from the header _hdr_. Also, the name of\nthe function ngene_command_config_free_buf() suggests that the actual\nintention is to ConfigureFreeBuffers, instead of ConfigureBuffers\n(which takes place in the function ngene_command_config_buf(), above).\nFix this by enclosing those 6 members of struct FW_CONFIGURE_FREE_BUFFERS\ninto new struct config, and use &com.cmd.ConfigureFreeBuffers.config as\nthe destination address, instead of &com.cmd.ConfigureBuffers.config,\nwhen calling memcpy().\nThis also helps with the ongoing efforts to globally enable\n-Warray-bounds and get us closer to being able to tighten the\nFORTIFY_SOURCE routines on memcpy()."], "name": "CVE-2021-47288", "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": "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": "2024-05-21T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47288\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47288\nhttps://lore.kernel.org/linux-cve-announce/2024052122-CVE-2021-47288-ffb4@gregkh/T"], "threat_severity": "Low", "upstream_fix": "kernel 4.4.277, kernel 4.9.277, kernel 4.14.241, kernel 4.19.199, kernel 5.4.136, kernel 5.10.54, kernel 5.13.6, kernel 5.14"}