Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
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.
CVSS Information
N/A
Vulnerability Type
加锁机制不恰当
Vulnerability Title
Linux kernel 竞争条件问题漏洞
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 4.8之前版本存在竞争条件问题漏洞。攻击者利用该漏洞获取受影响组件敏感信息。
CVSS Information
N/A
Vulnerability Type
N/A