CVE-2024-36950— 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 firewire:ohci 模块存在漏洞。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | a007bb857e0b26f5d8b73c2ff90782d9c0972620< b3948c69d60279fce5b2eeda92a07d66296c8130 |
affected |
a007bb857e0b26f5d8b73c2ff90782d9c0972620< 31279bbca40d2f40cb3bbb6d538ec9620a645dec |
affected | ||
a007bb857e0b26f5d8b73c2ff90782d9c0972620< fa273f312334246c909475c5868e6daab889cc8c |
affected | ||
a007bb857e0b26f5d8b73c2ff90782d9c0972620< 4f9cc355c328fc4f41cbd9c4cd58b235184fa420 |
affected | ||
a007bb857e0b26f5d8b73c2ff90782d9c0972620< 6fafe3661712b143d9c69a7322294bd53f559d5d |
affected | ||
a007bb857e0b26f5d8b73c2ff90782d9c0972620< 5982887de60c1b84f9c0ca07c835814d07fd1da0 |
affected | ||
a007bb857e0b26f5d8b73c2ff90782d9c0972620< 8643332aac0576581cfdf01798ea3e4e0d624b61 |
affected | ||
a007bb857e0b26f5d8b73c2ff90782d9c0972620< 752e3c53de0fa3b7d817a83050b6699b8e9c6ec9 |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-36950 基础信息
漏洞信息
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Vulnerability Title
firewire: ohci: mask bus reset interrupts between ISR and bottom half
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
firewire: ohci: mask bus reset interrupts between ISR and bottom half
In the FireWire OHCI interrupt handler, if a bus reset interrupt has
occurred, mask bus reset interrupts until bus_reset_work has serviced and
cleared the interrupt.
Normally, we always leave bus reset interrupts masked. We infer the bus
reset from the self-ID interrupt that happens shortly thereafter. A
scenario where we unmask bus reset interrupts was introduced in 2008 in
a007bb857e0b26f5d8b73c2ff90782d9c0972620: If
OHCI_PARAM_DEBUG_BUSRESETS (8) is set in the debug parameter bitmask, we
will unmask bus reset interrupts so we can log them.
irq_handler logs the bus reset interrupt. However, we can't clear the bus
reset event flag in irq_handler, because we won't service the event until
later. irq_handler exits with the event flag still set. If the
corresponding interrupt is still unmasked, the first bus reset will
usually freeze the system due to irq_handler being called again each
time it exits. This freeze can be reproduced by loading firewire_ohci
with "modprobe firewire_ohci debug=-1" (to enable all debugging output).
Apparently there are also some cases where bus_reset_work will get called
soon enough to clear the event, and operation will continue normally.
This freeze was first reported a few months after a007bb85 was committed,
but until now it was never fixed. The debug level could safely be set
to -1 through sysfs after the module was loaded, but this would be
ineffectual in logging bus reset interrupts since they were only
unmasked during initialization.
irq_handler will now leave the event flag set but mask bus reset
interrupts, so irq_handler won't be called again and there will be no
freeze. If OHCI_PARAM_DEBUG_BUSRESETS is enabled, bus_reset_work will
unmask the interrupt after servicing the event, so future interrupts
will be caught as desired.
As a side effect to this change, OHCI_PARAM_DEBUG_BUSRESETS can now be
enabled through sysfs in addition to during initial module loading.
However, when enabled through sysfs, logging of bus reset interrupts will
be effective only starting with the second bus reset, after
bus_reset_work has executed.
来源: CVE Program / CVE List V5
CVSS Information
N/A
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 firewire:ohci 模块存在漏洞。
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-2024-36950 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-36950 邮件列表归档 (2)
CVE-2024-36950 其他参考 (7)
同批安全公告 · Linux · 2024-05-30 · 共 93 条
| CVE-2024-36958 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36886 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36911 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36912 | 9.6 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36913 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36909 | 9.3 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2024-36922 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36921 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36910 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36032 | 8.1 HIGH | Linux kernel安全漏洞 |
| CVE-2024-36933 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36904 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36914 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36918 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36018 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36894 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36890 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36940 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36928 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-36884 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 93 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-36950
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