CVE-2022-0847
CVSS v3
7.8
HIGH
EPSS Score
83.4 %
exploit probability
CISA KEV
Yes
known exploited
Exploitation
—
SSVC status
Description
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.
CISA Known Exploited Vulnerability
- Date Added
- 2022-04-25
- Patch Due Date
- 2022-05-16
- Ransomware Use
- Unknown
Technical details
- Published
- 2022-03-10
- Exploit-DB
- EDB-50808
Frequently asked questions
What is 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.
Is CVE-2022-0847 actively exploited?
Yes. CVE-2022-0847 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-05-16.
What is the CVSS score for CVE-2022-0847?
CVE-2022-0847 has a CVSS v3 base score of 7.8 (HIGH severity).
Is CVE-2022-0847 affecting your environment?
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