CVSS 7.8 · High EPSS 0,13%
Kerentanan pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.
In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with exec_update_lock (FD links) proc_pid_get_link() and proc_pid_readlink() currently look up the task from the pid once, then do the ptrace access check on that task, then look up the task from the pid a second time to do the actual access. That's racy in several ways. To fix it, pass the task to the ->proc_get_link() handler, and instead of proc_fd_access_allowed(), introduce a new helper call_proc_get_link() that looks up and locks the task, does the access check, and calls ->proc_get_link().
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 2.6.18 hingga sebelum 5.10.261 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.212 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.178 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.145 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.12.97 |
| linux | linux kernel | Versi 6.13 hingga sebelum 6.18.40 |
| linux | linux kernel | Versi 6.19 hingga sebelum 7.1.4 |