CVE-2022-0847
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.
ACTIVELY EXPLOITED IN THE WILD
This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
Linux Kernel Privilege Escalation Vulnerability
Linux Kernel
Apply updates per vendor instructions.
4/25/2022
https://nvd.nist.gov/vuln/detail/CVE-2022-0847
Vulnerability Summary
CVSS v3 Score
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2 Score
AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS Score (Exploitation Probability)
This vulnerability has a 81.98% probability of being exploited in the next 30 days, ranking higher than 99% of all scored CVEs.
CWE Classification
Related Vulnerabilities
Same Weakness Type(CWE-665)
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Similar SeverityHIGH
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