{ "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": "2024-08-04T05:32:08.191Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:05:20.262Z" }, "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": "git" }, { "version": "dae52d009fc9", "lessThan": "c6ddeb63dd54", "status": "affected", "versionType": "git" }, { "version": "dae52d009fc9", "lessThan": "e818f2ff6485", "status": "affected", "versionType": "git" }, { "version": "dae52d009fc9", "lessThan": "ec731c6ef564", "status": "affected", "versionType": "git" }, { "version": "dae52d009fc9", "lessThan": "e617fa62f6cf", "status": "affected", "versionType": "git" }, { "version": "dae52d009fc9", "lessThan": "e991457afdcb", "status": "affected", "versionType": "git" }, { "version": "dae52d009fc9", "lessThan": "b9a178f189bb", "status": "affected", "versionType": "git" }, { "version": "dae52d009fc9", "lessThan": "8d4abca95ecc", "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/media/pci/ngene/ngene-core.c", "drivers/media/pci/ngene/ngene.h" ], "versions": [ { "version": "2.6.34", "status": "affected" }, { "version": "0", "lessThan": "2.6.34", "status": "unaffected", "versionType": "custom" }, { "version": "4.4.277", "lessThanOrEqual": "4.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.9.277", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.14.241", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "custom" }, { "version": "4.19.199", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.4.136", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.10.54", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.13.6", "lessThanOrEqual": "5.13.*", "status": "unaffected", "versionType": "custom" }, { "version": "5.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4487b968e5eacd02c493303dc2b61150bb7fe4b2" }, { "url": "https://git.kernel.org/stable/c/c6ddeb63dd543b5474b0217c4e47538b7ffd7686" }, { "url": "https://git.kernel.org/stable/c/e818f2ff648581a6c553ae2bebc5dcef9a8bb90c" }, { "url": "https://git.kernel.org/stable/c/ec731c6ef564ee6fc101fc5d73e3a3a953d09a00" }, { "url": "https://git.kernel.org/stable/c/e617fa62f6cf859a7b042cdd6c73af905ff8fca3" }, { "url": "https://git.kernel.org/stable/c/e991457afdcb5f4dbc5bc9d79eaf775be33e7092" }, { "url": "https://git.kernel.org/stable/c/b9a178f189bb6d75293573e181928735f5e3e070" }, { "url": "https://git.kernel.org/stable/c/8d4abca95ecc82fc8c41912fa0085281f19cc29f" } ], "title": "media: ngene: Fix out-of-bounds bug in ngene_command_config_free_buf()", "x_generator": { "engine": "bippy-a5840b7849dd" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47288", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-05-21T18:48:38.044089Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:15:21.595Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:32:08.191Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/4487b968e5eacd02c493303dc2b61150bb7fe4b2", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/c6ddeb63dd543b5474b0217c4e47538b7ffd7686", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e818f2ff648581a6c553ae2bebc5dcef9a8bb90c", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/ec731c6ef564ee6fc101fc5d73e3a3a953d09a00", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e617fa62f6cf859a7b042cdd6c73af905ff8fca3", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/e991457afdcb5f4dbc5bc9d79eaf775be33e7092", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/b9a178f189bb6d75293573e181928735f5e3e070", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/8d4abca95ecc82fc8c41912fa0085281f19cc29f", "tags": [ "x_transferred" ] } ] } ] } }