CVSS 3.0
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се локално, при специфични условия, с обикновен потребителски вход и без действие от потребителя.
Описание
Оригинално описание
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.
Засегнати продукти
- The Linux Foundation kernel: older then 4.8
Вид слабост
История
- 22 април 2019 Публикувано
Други уязвимости в The Linux Foundation kernel
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2019-3901
- https://nvd.nist.gov/vuln/detail/CVE-2019-3901
- http://www.securityfocus.com/bid/89937
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html
- https://security.netapp.com/advisory/ntap-20190517-0005/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3901