| ID |
CVE-2019-3901
|
| Sažetak |
A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8. |
| Reference |
|
| CVSS |
| Base: | 1.9 |
| Impact: | 2.9 |
| Exploitability: | 3.4 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| LOCAL |
MEDIUM |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| PARTIAL |
NONE |
NONE |
|
| CVSS vektor |
AV:L/AC:M/Au:N/C:P/I:N/A:N |
| Zadnje važnije ažuriranje |
12-02-2023 - 23:38 |
| Objavljeno |
22-04-2019 - 16:29 |
