CVE-2022-0847
악용 확인 Linux Kernel Privilege Escalation Vulnerability
악용 여부
악용 확인
2022-04-25
2022-05-16
CISA 미확인
Linux Kernel
심각도 (발행처 발표값)
높음7.8
3.1
NVD (미국 NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
악용 확률 (EPSS)
89.7%
89.72%
99.8%
2026-09-04
한국어 공식 권고
CISA 원문
Linux kernel contains an improper initialization vulnerability where an unprivileged local user could escalate their privileges on the system. This vulnerability has the moniker of "Dirty Pipe."— CISA KEV · shortDescription 원문
Apply updates per vendor instructions.— CISA KEV · requiredAction 원문
취약점 설명 (NVD 원문)
A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe and push_pipe functions in the Linux kernel and could thus contain stale values. An unprivileged local user could use this flaw to write to pages in the page cache backed by read only files and as such escalate their privileges on the system.
CWE-665 CWE-665
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