جزئیات آسیب‌پذیری
CVE-2025-39683
tracing: Limit access to parser->buffer when trace_get_user failed
شرح رسمی (انگلیسی)
In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser->buffer when trace_get_user failed When the length of the string written to set_ftrace_filter exceeds FTRACE_BUFF_MAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in strsep+0x18c/0x1b0 Read of size 1 at addr ffff0000d00bd5ba by task ash/165 CPU: 1 UID: 0 PID: 165 Comm: ash Not tainted 6.16.0-g6bcdbd62bd56-dirty Hardware name: linux,dummy-virt (DT) Call trace: show_stack+0x34/0x50 (C) dump_stack_lvl+0xa0/0x158 print_address_description.constprop.0+0x88/0x398 print_report+0xb0/0x280 kasan_report+0xa4/0xf0 __asan_report_load1_noabort+0x20/0x30 strsep+0x18c/0x1b0 ftrace_process_regex.isra.0+0x100/0x2d8 ftrace_regex_release+0x484/0x618 __fput+0x364/0xa58 ____fput+0x28/0x40 task_work_run+0x154/0x278 do_notify_resume+0x1f0/0x220 el0_svc+0xec/0xf0 el0t_64_sync_handler+0xa0/0xe8 el0t_64_sync+0x1ac/0x1b0 The reason is that trace_get_user will fail when processing a string longer than FTRACE_BUFF_MAX, but not set the end of parser->buffer to 0. Then an OOB access will be triggered in ftrace_regex_release-> ftrace_process_regex->strsep->strpbrk. We can solve this problem by limiting access to parser->buffer when trace_get_user failed.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 7.8بالا | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Linux | Linux | 0b641b25870f02e2423e494365fc5243cc1e2759 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 24cd31752f47699b89b4b3471155c8e599a1a23a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 3d9281a4ac7171c808f9507f0937eb236b353905 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.13 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 6ab671191f64b0da7d547e2ad4dc199ca7e5b558 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | cdd107d7f18158d966c2bc136204fe826dac445c | CVEProject cvelistV5 (CNA) |
| Linux | Linux | e9cb474de7ff7a970c2a3951c12ec7e3113c0c35 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ffd51dbfd2900e50c71b5c069fe407957e52d61f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 4.14.233 ≤ v < 4.15 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 4.19.191 ≤ v < 4.20 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 4.4.269 ≤ v < 4.5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 4.9.269 ≤ v < 4.10 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.10.36 ≤ v < 5.10.241 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.11.20 ≤ v < 5.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.12.3 ≤ v < 5.13 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.4.118 ≤ v < 5.5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 634684d79733124f7470b226b0f42aada4426b07 ≤ v < b842ef39c2ad6156c13afdec25ecc6792a9b67b9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 ≤ v < 6a909ea83f226803ea0e718f6e88613df9234d58 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 ≤ v < 3079517a5ba80901fe828a06998da64b9b8749be | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 ≤ v < d0c68045b8b0f3737ed7bd6b8c83b7887014adee | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 ≤ v < 58ff8064cb4c7eddac4da1a59da039ead586950a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 ≤ v < 418b448e1d7470da9d4d4797f71782595ee69c49 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 8c9af478c06bb1ab1422f90d8ecbc53defd44bc3 ≤ v < 41b838420457802f21918df66764b6fbf829d330 | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC CN 4100 | v < V5.0 | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | V3.1.5 ≤ v | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | V3.1.5 ≤ v | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | V3.1.5 ≤ v | CVEProject cvelistV5 (CNA) |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | V3.1.5 ≤ v | CVEProject cvelistV5 (CNA) |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | V3.1.5 ≤ v | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۱۱- https://git.kernel.org/stable/c/b842ef39c2ad6156c13afdec25ecc6792a9b67b9
- https://git.kernel.org/stable/c/41b838420457802f21918df66764b6fbf829d330
- https://git.kernel.org/stable/c/418b448e1d7470da9d4d4797f71782595ee69c49
- https://git.kernel.org/stable/c/58ff8064cb4c7eddac4da1a59da039ead586950a
- https://git.kernel.org/stable/c/d0c68045b8b0f3737ed7bd6b8c83b7887014adee
- https://git.kernel.org/stable/c/3079517a5ba80901fe828a06998da64b9b8749be
- https://git.kernel.org/stable/c/6a909ea83f226803ea0e718f6e88613df9234d58
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
اطلاعات
- تاریخ انتشار
- ۱۴۰۴/۰۶/۱۴
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۲۴
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- کامل
ضعف‌ها (CWE)
- —