CVE-2023-53703
0.02%V4
2025-10-22
14h15 +00:00
14h15 +00:00
指定 CVE 通知
掌握特定 CVE 的任何變更。
CVE 描述
In the Linux kernel, the following vulnerability has been resolved:
HID: amd_sfh: Fix for shift-out-of-bounds
Shift operation of 'exp' and 'shift' variables exceeds the maximum number
of shift values in the u32 range leading to UBSAN shift-out-of-bounds.
...
[ 6.120512] UBSAN: shift-out-of-bounds in drivers/hid/amd-sfh-hid/sfh1_1/amd_sfh_desc.c:149:50
[ 6.120598] shift exponent 104 is too large for 64-bit type 'long unsigned int'
[ 6.120659] CPU: 4 PID: 96 Comm: kworker/4:1 Not tainted 6.4.0amd_1-next-20230519-dirty #10
[ 6.120665] Hardware name: AMD Birman-PHX/Birman-PHX, BIOS SFH_with_HPD_SEN.FD 04/05/2023
[ 6.120667] Workqueue: events amd_sfh_work_buffer [amd_sfh]
[ 6.120687] Call Trace:
[ 6.120690]
[ 6.120694] dump_stack_lvl+0x48/0x70
[ 6.120704] dump_stack+0x10/0x20
[ 6.120707] ubsan_epilogue+0x9/0x40
[ 6.120716] __ubsan_handle_shift_out_of_bounds+0x10f/0x170
[ 6.120720] ? psi_group_change+0x25f/0x4b0
[ 6.120729] float_to_int.cold+0x18/0xba [amd_sfh]
[ 6.120739] get_input_rep+0x57/0x340 [amd_sfh]
[ 6.120748] ? __schedule+0xba7/0x1b60
[ 6.120756] ? __pfx_get_input_rep+0x10/0x10 [amd_sfh]
[ 6.120764] amd_sfh_work_buffer+0x91/0x180 [amd_sfh]
[ 6.120772] process_one_work+0x229/0x430
[ 6.120780] worker_thread+0x4a/0x3c0
[ 6.120784] ? __pfx_worker_thread+0x10/0x10
[ 6.120788] kthread+0xf7/0x130
[ 6.120792] ? __pfx_kthread+0x10/0x10
[ 6.120795] ret_from_fork+0x29/0x50
[ 6.120804]
...
Fix this by adding the condition to validate shift ranges.
CVE 資訊
EPSS
EPSS 是一種預測漏洞被利用可能性的評分模型。
EPSS 評分
EPSS 模型產生介於 0 到 1（0% 到 100%）之間的概率分數。分數越高，漏洞被利用的概率越大。
EPSS 百分位數
百分位數用於根據 EPSS 分數對 CVE 進行排名。例如，EPSS 評分在第 95 百分位的 CVE 比 95% 的其他 CVE 更有可能被利用。因此，百分位數用於比較某 CVE 的 EPSS 分數與其他 CVE 的相對位置。
