{ "document": { "aggregate_severity": { "text": "High" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/oraclelinux6els/vex/2021/cve-2021-47633-els_os-oraclelinux6els.json" } ], "title": "Security update on CVE-2021-47633", "tracking": { "current_release_date": "2025-12-23T22:15:38Z", "generator": { "date": "2025-12-23T22:15:38Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2021-47633-ELS_OS-ORACLELINUX6ELS", "initial_release_date": "2021-01-01T00:00:00Z", "revision_history": [ { "date": "2021-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-10-21T19:30:20Z", "number": "2", "summary": "Official Publication" }, { "date": "2025-12-23T22:15:38Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Oracle Linux 6", "product": { "name": "Oracle Linux 6", "product_id": "Oracle-Linux-6", "product_identification_helper": { "cpe": "cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Oracle Linux" } ], "category": "vendor", "name": "Oracle Corporation" }, { "branches": [ { "branches": [ { "category": "product_version", "name": "python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/python-perf@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } }, { "category": "product_version", "name": "perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/perf@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } }, { "category": "product_version", "name": "kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-debug@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } }, { "category": "product_version", "name": "kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } }, { "category": "product_version", "name": "kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-devel@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } }, { "category": "product_version", "name": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-debug-devel@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } }, { "category": "product_version", "name": "kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product": { "name": "kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_id": "kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-headers@2.6.32-754.35.8.el6.tuxcare.els26?arch=x86_64" } } } ], "category": "architecture", "name": "x86_64" }, { "branches": [ { "category": "product_version", "name": "kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product": { "name": "kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product_id": "kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-abi-whitelists@2.6.32-754.35.8.el6.tuxcare.els26?arch=noarch" } } }, { "category": "product_version", "name": "kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product": { "name": "kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product_id": "kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-doc@2.6.32-754.35.8.el6.tuxcare.els26?arch=noarch" } } }, { "category": "product_version", "name": "kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product": { "name": "kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product_id": "kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-firmware@2.6.32-754.35.8.el6.tuxcare.els26?arch=noarch" } } } ], "category": "architecture", "name": "noarch" }, { "branches": [ { "category": "product_version", "name": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686", "product": { "name": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686", "product_id": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686", "product_identification_helper": { "purl": "pkg:rpm/cloudlinux/kernel-debug-devel@2.6.32-754.35.8.el6.tuxcare.els26?arch=i686" } } } ], "category": "architecture", "name": "i686" } ], "category": "vendor", "name": "CloudLinux" } ], "relationships": [ { "category": "default_component_of", "full_product_name": { "name": "python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch" }, "product_reference": "kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686" }, "product_reference": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch" }, "product_reference": "kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64 as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" }, "product_reference": "kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "relates_to_product_reference": "Oracle-Linux-6" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch as a component of Oracle Linux 6", "product_id": "Oracle-Linux-6:kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch" }, "product_reference": "kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "relates_to_product_reference": "Oracle-Linux-6" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-47633", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111\n\nThe bug was found during fuzzing. Stacktrace locates it in\nath5k_eeprom_convert_pcal_info_5111.\nWhen none of the curve is selected in the loop, idx can go\nup to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound.\npd = &chinfo[pier].pd_curves[idx];\n\nThere are many OOB writes using pd later in the code. So I\nadded a sanity check for idx. Checks for other loops involving\nAR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not\nused outside the loops.\n\nThe patch is NOT tested with real device.\n\nThe following is the fuzzing report\n\nBUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\nWrite of size 1 at addr ffff8880174a4d60 by task modprobe/214\n\nCPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1\nCall Trace:\n dump_stack+0x76/0xa0\n print_address_description.constprop.0+0x16/0x200\n ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n __kasan_report.cold+0x37/0x7c\n ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n kasan_report+0xe/0x20\n ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k]\n ? apic_timer_interrupt+0xa/0x20\n ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]\n ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k]\n ath5k_eeprom_init+0x2513/0x6290 [ath5k]\n ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k]\n ? usleep_range+0xb8/0x100\n ? apic_timer_interrupt+0xa/0x20\n ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k]\n ath5k_hw_init+0xb60/0x1970 [ath5k]\n ath5k_init_ah+0x6fe/0x2530 [ath5k]\n ? kasprintf+0xa6/0xe0\n ? ath5k_stop+0x140/0x140 [ath5k]\n ? _dev_notice+0xf6/0xf6\n ? apic_timer_interrupt+0xa/0x20\n ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k]\n ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]\n ? mutex_lock+0x89/0xd0\n ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k]\n local_pci_probe+0xd3/0x160\n pci_device_probe+0x23f/0x3e0\n ? pci_device_remove+0x280/0x280\n ? pci_device_remove+0x280/0x280\n really_probe+0x209/0x5d0", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "Oracle-Linux-6:kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "Oracle-Linux-6:kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686", "Oracle-Linux-6:kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "Oracle-Linux-6:kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "Oracle-Linux-6:kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2021-47633" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/25efc5d03455c3839249bc77fce5e29ecb54677e", "url": "https://git.kernel.org/stable/c/25efc5d03455c3839249bc77fce5e29ecb54677e" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/564d4eceb97eaf381dd6ef6470b06377bb50c95a", "url": "https://git.kernel.org/stable/c/564d4eceb97eaf381dd6ef6470b06377bb50c95a" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/9d7d83d0399e23d66fd431b553842a84ac10398f", "url": "https://git.kernel.org/stable/c/9d7d83d0399e23d66fd431b553842a84ac10398f" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/be2f81024e7981565d90a4c9ca3067d11b6bca7f", "url": "https://git.kernel.org/stable/c/be2f81024e7981565d90a4c9ca3067d11b6bca7f" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/c4e2f577271e158d87a916afb4e87415a88ce856", "url": "https://git.kernel.org/stable/c/c4e2f577271e158d87a916afb4e87415a88ce856" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/cbd96d6cad6625feba9c8d101ed4977d53e82f8e", "url": "https://git.kernel.org/stable/c/cbd96d6cad6625feba9c8d101ed4977d53e82f8e" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84", "url": "https://git.kernel.org/stable/c/ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/f4de974019a0adf34d0e7de6b86252f1bd266b06", "url": "https://git.kernel.org/stable/c/f4de974019a0adf34d0e7de6b86252f1bd266b06" }, { "category": "external", "summary": "https://git.kernel.org/stable/c/fc8f7752a82f4accb99c0f1a868906ba1eb7b86f", "url": "https://git.kernel.org/stable/c/fc8f7752a82f4accb99c0f1a868906ba1eb7b86f" } ], "release_date": "2025-02-26T06:37:00Z", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1" }, "products": [ "Oracle-Linux-6:kernel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-abi-whitelists-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "Oracle-Linux-6:kernel-debug-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.i686", "Oracle-Linux-6:kernel-debug-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-devel-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:kernel-doc-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "Oracle-Linux-6:kernel-firmware-0:2.6.32-754.35.8.el6.tuxcare.els26.noarch", "Oracle-Linux-6:kernel-headers-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64", "Oracle-Linux-6:python-perf-0:2.6.32-754.35.8.el6.tuxcare.els26.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Important" } ] } ] }