CVE-2021-47633— Linux kernel 安全漏洞
影响版本矩阵 20
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 8e218fb24faef0bfe95bc91b3c05261e20439527< f4de974019a0adf34d0e7de6b86252f1bd266b06 | affected |
8e218fb24faef0bfe95bc91b3c05261e20439527< ed3dfdaa8b5f0579eabfc1c5818eed30cfe1fe84 | affected | ||
8e218fb24faef0bfe95bc91b3c05261e20439527< 25efc5d03455c3839249bc77fce5e29ecb54677e | affected | ||
8e218fb24faef0bfe95bc91b3c05261e20439527< c4e2f577271e158d87a916afb4e87415a88ce856 | affected | ||
8e218fb24faef0bfe95bc91b3c05261e20439527< 9d7d83d0399e23d66fd431b553842a84ac10398f | affected | ||
8e218fb24faef0bfe95bc91b3c05261e20439527< be2f81024e7981565d90a4c9ca3067d11b6bca7f | affected | ||
8e218fb24faef0bfe95bc91b3c05261e20439527< fc8f7752a82f4accb99c0f1a868906ba1eb7b86f | affected | ||
8e218fb24faef0bfe95bc91b3c05261e20439527< cbd96d6cad6625feba9c8d101ed4977d53e82f8e | affected | ||
| … +12 条更多 | |||
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一、 漏洞 CVE-2021-47633 基础信息
漏洞信息
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Vulnerability Title
ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ath5k: fix OOB in ath5k_eeprom_read_pcal_info_5111 The bug was found during fuzzing. Stacktrace locates it in ath5k_eeprom_convert_pcal_info_5111. When none of the curve is selected in the loop, idx can go up to AR5K_EEPROM_N_PD_CURVES. The line makes pd out of bound. pd = &chinfo[pier].pd_curves[idx]; There are many OOB writes using pd later in the code. So I added a sanity check for idx. Checks for other loops involving AR5K_EEPROM_N_PD_CURVES are not needed as the loop index is not used outside the loops. The patch is NOT tested with real device. The following is the fuzzing report BUG: KASAN: slab-out-of-bounds in ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] Write of size 1 at addr ffff8880174a4d60 by task modprobe/214 CPU: 0 PID: 214 Comm: modprobe Not tainted 5.6.0 #1 Call Trace: dump_stack+0x76/0xa0 print_address_description.constprop.0+0x16/0x200 ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] __kasan_report.cold+0x37/0x7c ? ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] kasan_report+0xe/0x20 ath5k_eeprom_read_pcal_info_5111+0x126a/0x1390 [ath5k] ? apic_timer_interrupt+0xa/0x20 ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k] ? ath5k_pci_eeprom_read+0x228/0x3c0 [ath5k] ath5k_eeprom_init+0x2513/0x6290 [ath5k] ? ath5k_eeprom_init_11a_pcal_freq+0xbc0/0xbc0 [ath5k] ? usleep_range+0xb8/0x100 ? apic_timer_interrupt+0xa/0x20 ? ath5k_eeprom_read_pcal_info_2413+0x2f20/0x2f20 [ath5k] ath5k_hw_init+0xb60/0x1970 [ath5k] ath5k_init_ah+0x6fe/0x2530 [ath5k] ? kasprintf+0xa6/0xe0 ? ath5k_stop+0x140/0x140 [ath5k] ? _dev_notice+0xf6/0xf6 ? apic_timer_interrupt+0xa/0x20 ath5k_pci_probe.cold+0x29a/0x3d6 [ath5k] ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k] ? mutex_lock+0x89/0xd0 ? ath5k_pci_eeprom_read+0x3c0/0x3c0 [ath5k] local_pci_probe+0xd3/0x160 pci_device_probe+0x23f/0x3e0 ? pci_device_remove+0x280/0x280 ? pci_device_remove+0x280/0x280 really_probe+0x209/0x5d0
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ath5k_eeprom_read_pcal_info_5111函数中的越界读取。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2021-47633 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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补丁 · 9
同批安全公告 · Linux · 2025-02-26 · 共 706 条
| CVE-2022-49498 | Linux kernel 安全漏洞 | |
| CVE-2022-49486 | Linux kernel 安全漏洞 | |
| CVE-2022-49488 | Linux kernel 安全漏洞 | |
| CVE-2022-49489 | Linux kernel 安全漏洞 | |
| CVE-2022-49490 | Linux kernel 安全漏洞 | |
| CVE-2022-49491 | Linux kernel 安全漏洞 | |
| CVE-2022-49492 | Linux kernel 安全漏洞 | |
| CVE-2022-49493 | Linux kernel 安全漏洞 | |
| CVE-2022-49494 | Linux kernel 安全漏洞 | |
| CVE-2022-49495 | Linux kernel 安全漏洞 | |
| CVE-2022-49497 | Linux kernel 安全漏洞 | |
| CVE-2022-49496 | Linux kernel 安全漏洞 | |
| CVE-2022-49502 | Linux kernel 安全漏洞 | |
| CVE-2022-49507 | Linux kernel 安全漏洞 | |
| CVE-2022-49508 | Linux kernel 安全漏洞 | |
| CVE-2022-49506 | Linux kernel 安全漏洞 | |
| CVE-2022-49504 | Linux kernel 安全漏洞 | |
| CVE-2022-49505 | Linux kernel 安全漏洞 | |
| CVE-2022-49501 | Linux kernel 安全漏洞 | |
| CVE-2022-49500 | Linux kernel 安全漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2021-47633
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