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CVE-2024-43893— Linux kernel 安全漏洞

AI Predicted 7.8 Difficulty: Easy EPSS 0.26% · P17

Possible ATT&CK Techniques 1AI

T1055 · Process Injection

Affected Version Matrix 18

ベンダープロダクトVersion Rangeステータス
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 3bbd90fca824e6fd61fb20f6dd2b0fa5f8b14bbaaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 55b2a5d331a6ceb1c4372945fdb77181265ba24faffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 52b138f1021113e593ee6ad258ce08fe90693a9eaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 9196e42a3b8eeff1707e6ef769112b4b6096be49affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e13ba3fe5ee070f8a9dab60029d52b1f61da5051affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e3ad503876283ac3fcca922a1bf243ef9eb0b0e2affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 68dc02f319b9ee54dc23caba742a5c754d1cccc8affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 6eabce6608d6f3440f4c03aa3d3ef50a47a3d193affected
… +10 more rows
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I. CVE-2024-43893の基本情報

脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
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脆弱性タイトル
serial: core: check uartclk for zero to avoid divide by zero
ソース: CVE Program / CVE List V5
脆弱性説明
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
ソース: CVE Program / CVE List V5
CVSS情報
N/A
ソース: CVE Program / CVE List V5
脆弱性タイプ
N/A
ソース: CVE Program / CVE List V5
脆弱性タイトル
Linux kernel 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
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。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)

影響を受ける製品

ベンダープロダクト影響を受けるバージョンCPE購読
LinuxLinux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 3bbd90fca824e6fd61fb20f6dd2b0fa5f8b14bba -
LinuxLinux 2.6.12 -

II. CVE-2024-43893の公開POC

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III. CVE-2024-43893のインテリジェンス情報

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CVE-2024-43893 其他参考 (8)

Same Patch Batch · Linux · 2024-08-26 · 39 CVEs total

CVE-2024-449427.8 HIGHf2fs: fix to do sanity check on F2FS_INLINE_DATA flag in inode during GC
CVE-2024-439107.8 HIGHbpf: add missing check_func_arg_reg_off() to prevent out-of-bounds memory accesses
CVE-2024-449347.8 HIGHnet: bridge: mcast: wait for previous gc cycles when removing port
CVE-2024-438977.8 HIGHnet: drop bad gso csum_start and offset in virtio_net_hdr
CVE-2024-438927.8 HIGHmemcg: protect concurrent access to mem_cgroup_idr
CVE-2024-438917.8 HIGHtracing: Have format file honor EVENT_FILE_FL_FREED
CVE-2024-449397.8 HIGHjfs: fix null ptr deref in dtInsertEntry
CVE-2024-438887.8 HIGHmm: list_lru: fix UAF for memory cgroup
CVE-2024-449417.8 HIGHf2fs: fix to cover read extent cache access with lock
CVE-2024-449407.5 HIGHfou: remove warn in gue_gro_receive on unsupported protocol
CVE-2024-449337.3 HIGHbnxt_en : Fix memory out-of-bounds in bnxt_fill_hw_rss_tbl()
CVE-2024-439137.0 HIGHnvme: apple: fix device reference counting
CVE-2024-44938jfs: Fix shift-out-of-bounds in dbDiscardAG
CVE-2024-44937platform/x86: intel-vbtn: Protect ACPI notify handler against recursion
CVE-2024-44936power: supply: rt5033: Bring back i2c_set_clientdata
CVE-2024-44935sctp: Fix null-ptr-deref in reuseport_add_sock().
CVE-2024-44932idpf: fix UAFs when destroying the queues
CVE-2024-44931gpio: prevent potential speculation leaks in gpio_device_get_desc()
CVE-2024-43914md/raid5: avoid BUG_ON() while continue reshape after reassembling
CVE-2024-43912wifi: nl80211: disallow setting special AP channel widths

Showing 20 of 39 CVEs. View all on vendor page →

IV. 関連脆弱性

同じ製品: Linux
同じベンダー: Linux

V. CVE-2024-43893へのコメント

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