vulnerability
Amazon Linux AMI: CVE-2022-0847: Security patch for kernel (ALAS-2022-1571)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Mar 7, 2022 | Mar 10, 2022 | Nov 21, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Mar 7, 2022
Added
Mar 10, 2022
Modified
Nov 21, 2025
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.
Solution
amazon-linux-upgrade-kernel
Rapid7 Labs
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