Vulnerability Information
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Vulnerability Title
Use-after-free in Linux kernel's Performance Events subsystem
Vulnerability Description
A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perf_group_detach function did not check the event's siblings' attach_state before calling add_event_to_groups(), but remove_on_exec made it possible to call list_del_event() on before detaching from their group, making it possible to use a dangling pointer causing a use-after-free vulnerability. We recommend upgrading past commit fd0815f632c24878e325821943edccc7fde947a2.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
释放后使用
Vulnerability Title
Linux kernel 资源管理错误漏洞
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存在安全漏洞，该漏洞源于 Performance Events 系统存在释放后重用漏洞，可被利用实现本地提权。
CVSS Information
N/A
Vulnerability Type
N/A