CVE-2024-46743— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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，该漏洞源于存在越界读取问题。
可能的 ATT&CK 技术 1 AI
T1211 · Exploitation for Stealth影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< d2a79494d8a5262949736fb2c3ac44d20a51b0d8 |
affected |
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< defcaa426ba0bc89ffdafb799d2e50b52f74ffc4 |
affected | ||
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< 9d1e9f0876b03d74d44513a0ed3ed15ef8f2fed5 |
affected | ||
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< baaf26723beab3a04da578d3008be3544f83758f |
affected | ||
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< 8ff351ea12e918db1373b915c4c268815929cbe5 |
affected | ||
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< 7ead730af11ee7da107f16fc77995613c58d292d |
affected | ||
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< bf68acd840b6a5bfd3777e0d5aaa204db6b461a9 |
affected | ||
cc9fd71c62f542233c412b5fabc1bbe0c4d5ad08< b739dffa5d570b411d4bdf4bb9b8dfd6b7d72305 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-46743 基础信息
漏洞信息
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Vulnerability Title
of/irq: Prevent device address out-of-bounds read in interrupt map walk
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
of/irq: Prevent device address out-of-bounds read in interrupt map walk
When of_irq_parse_raw() is invoked with a device address smaller than
the interrupt parent node (from #address-cells property), KASAN detects
the following out-of-bounds read when populating the initial match table
(dyndbg="func of_irq_parse_* +p"):
OF: of_irq_parse_one: dev=/soc@0/picasso/watchdog, index=0
OF: parent=/soc@0/pci@878000000000/gpio0@17,0, intsize=2
OF: intspec=4
OF: of_irq_parse_raw: ipar=/soc@0/pci@878000000000/gpio0@17,0, size=2
OF: -> addrsize=3
==================================================================
BUG: KASAN: slab-out-of-bounds in of_irq_parse_raw+0x2b8/0x8d0
Read of size 4 at addr ffffff81beca5608 by task bash/764
CPU: 1 PID: 764 Comm: bash Tainted: G O 6.1.67-484c613561-nokia_sm_arm64 #1
Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.01-12.24.03-dirty 01/01/2023
Call trace:
dump_backtrace+0xdc/0x130
show_stack+0x1c/0x30
dump_stack_lvl+0x6c/0x84
print_report+0x150/0x448
kasan_report+0x98/0x140
__asan_load4+0x78/0xa0
of_irq_parse_raw+0x2b8/0x8d0
of_irq_parse_one+0x24c/0x270
parse_interrupts+0xc0/0x120
of_fwnode_add_links+0x100/0x2d0
fw_devlink_parse_fwtree+0x64/0xc0
device_add+0xb38/0xc30
of_device_add+0x64/0x90
of_platform_device_create_pdata+0xd0/0x170
of_platform_bus_create+0x244/0x600
of_platform_notify+0x1b0/0x254
blocking_notifier_call_chain+0x9c/0xd0
__of_changeset_entry_notify+0x1b8/0x230
__of_changeset_apply_notify+0x54/0xe4
of_overlay_fdt_apply+0xc04/0xd94
...
The buggy address belongs to the object at ffffff81beca5600
which belongs to the cache kmalloc-128 of size 128
The buggy address is located 8 bytes inside of
128-byte region [ffffff81beca5600, ffffff81beca5680)
The buggy address belongs to the physical page:
page:00000000230d3d03 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1beca4
head:00000000230d3d03 order:1 compound_mapcount:0 compound_pincount:0
flags: 0x8000000000010200(slab|head|zone=2)
raw: 8000000000010200 0000000000000000 dead000000000122 ffffff810000c300
raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffffff81beca5500: 04 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffffff81beca5580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffffff81beca5600: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffffff81beca5680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffffff81beca5700: 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc fc
==================================================================
OF: -> got it !
Prevent the out-of-bounds read by copying the device address into a
buffer of sufficient size.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
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，该漏洞源于存在越界读取问题。
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-2024-46743 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2024-09-18 · 共 85 条
| CVE-2024-46717 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46736 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46796 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-46755 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46750 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46792 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46787 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46734 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46738 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46740 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46746 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46781 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46780 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46741 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46751 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46777 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46754 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46762 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46765 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-46771 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 85 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-46743
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