Vulnerability intelligence

CVE-2022-0847

Linux Kernel Privilege Escalation Vulnerability

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.

CVSS Score

7.8

High

EPSS — Exploit Probability

81%

Riskier than 99% of all CVEs

Exploitation

Confirmed in the wild

Used in ransomware campaigns

Remediation

Patch available

Federal deadline 2022-05-16