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."
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."
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.
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 Catalog
Date Added
Due Date
Vulnerability Name
Required Action
2022-04-25
2022-05-16
Linux Kernel Privilege Escalation Vulnerability
Apply updates per vendor instructions.
Date Added: 2022-04-25
Due Date: 2022-05-16
Vulnerability Name: Linux Kernel Privilege Escalation Vulnerability
Required Action: Apply updates per vendor instructions.