漏洞信息
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Vulnerability Title
Privilege escalation with IO_RING_OP_CLOSE in the Linux Kernel
Vulnerability Description
A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Vulnerability Title
Linux kernel 安全漏洞
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 5.6版本至5.11版本存在安全漏洞。攻击者利用该漏洞将权限升级为root权限。
CVSS Information
N/A
Vulnerability Type
N/A