CVE-2024-43893— Linux kernel 安全漏洞
可能的 ATT&CK 技术 1AI
T1055 · Process Injection影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3bbd90fca824e6fd61fb20f6dd2b0fa5f8b14bba | affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 55b2a5d331a6ceb1c4372945fdb77181265ba24f | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 52b138f1021113e593ee6ad258ce08fe90693a9e | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 9196e42a3b8eeff1707e6ef769112b4b6096be49 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e13ba3fe5ee070f8a9dab60029d52b1f61da5051 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e3ad503876283ac3fcca922a1bf243ef9eb0b0e2 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 68dc02f319b9ee54dc23caba742a5c754d1cccc8 | affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 6eabce6608d6f3440f4c03aa3d3ef50a47a3d193 | affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2024-43893 基础信息
漏洞信息
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Vulnerability Title
serial: core: check uartclk for zero to avoid divide by zero
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: serial: core: check uartclk for zero to avoid divide by zero Calling ioctl TIOCSSERIAL with an invalid baud_base can result in uartclk being zero, which will result in a divide by zero error in uart_get_divisor(). The check for uartclk being zero in uart_set_info() needs to be done before other settings are made as subsequent calls to ioctl TIOCSSERIAL for the same port would be impacted if the uartclk check was done where uartclk gets set. Oops: divide error: 0000 PREEMPT SMP KASAN PTI RIP: 0010:uart_get_divisor (drivers/tty/serial/serial_core.c:580) Call Trace: <TASK> serial8250_get_divisor (drivers/tty/serial/8250/8250_port.c:2576 drivers/tty/serial/8250/8250_port.c:2589) serial8250_do_set_termios (drivers/tty/serial/8250/8250_port.c:502 drivers/tty/serial/8250/8250_port.c:2741) serial8250_set_termios (drivers/tty/serial/8250/8250_port.c:2862) uart_change_line_settings (./include/linux/spinlock.h:376 ./include/linux/serial_core.h:608 drivers/tty/serial/serial_core.c:222) uart_port_startup (drivers/tty/serial/serial_core.c:342) uart_startup (drivers/tty/serial/serial_core.c:368) uart_set_info (drivers/tty/serial/serial_core.c:1034) uart_set_info_user (drivers/tty/serial/serial_core.c:1059) tty_set_serial (drivers/tty/tty_io.c:2637) tty_ioctl (drivers/tty/tty_io.c:2647 drivers/tty/tty_io.c:2791) __x64_sys_ioctl (fs/ioctl.c:52 fs/ioctl.c:907 fs/ioctl.c:893 fs/ioctl.c:893) do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) Rule: add
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，该漏洞源于在uart_get_divisor函数中存在除以零的问题。
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-2024-43893 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-43893 其他参考 (8)
同批安全公告 · Linux · 2024-08-26 · 共 39 条
| CVE-2024-44942 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43910 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-44934 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43897 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43892 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43891 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-44939 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43888 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-44941 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-44940 | 7.5 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-44933 | 7.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-43913 | 7.0 HIGH | Linux kernel 安全漏洞 |
| CVE-2024-44938 | Linux kernel 安全漏洞 | |
| CVE-2024-44937 | Linux kernel 安全漏洞 | |
| CVE-2024-44936 | Linux kernel 安全漏洞 | |
| CVE-2024-44935 | Linux kernel 安全漏洞 | |
| CVE-2024-44932 | Linux kernel 安全漏洞 | |
| CVE-2024-44931 | Linux kernel 安全漏洞 | |
| CVE-2024-43914 | Linux kernel 安全漏洞 | |
| CVE-2024-43912 | Linux kernel 安全漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2024-43893
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