• CVE-2021-43057

发布时间: 2022年3月4日

修改时间: 2022年3月4日

概要

An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.

CVSS v3 指标

NVD openEuler
Confidentiality High High
Attack Vector Local Local
CVSS评分 7.8 8.4
Attack Complexity Low Low
Privileges Required Low None
Scope Unchanged Unchanged
Integrity High High
User Interaction None None
Availability High High

安全公告

公告名 概要 发布时间
KylinSec-SA-2022-1145 An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task. 2022年3月4日

影响产品

产品 状态
KY3.4-4A kernel Unaffected