PSIRTCVE-2022-0847 on Linux Kernel
Summary
A security advisory was released affecting a version of the Linux Kernel used in FortiAuthenticator, FortiProxy & FortiSIEM:
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.
Affected Products
FortiAuthenticator version 6.3.0 through 6.3.3
FortiAuthenticator version 6.4.0 through 6.4.1
FortiProxy version 7.0.0 through 7.0.3
FortiSIEM version 6.1.0 through 6.1.2
FortiSIEM version 6.2.0 through 6.2.1
FortiSIEM version 6.3.0 through 6.3.3
FortiSIEM version 6.4.0
Solutions
Please upgrade to FortiAuthenticator version 6.5.0 or above
Please upgrade to FortiAuthenticator version 6.4.2 or above
Please upgrade to FortiAuthenticator version 6.3.4 or above
Please upgrade to FortiProxy version 7.2.0 or above
Please upgrade to FortiProxy version 7.0.4 or above
Please upgrade to FortiSIEM version 6.5.0 or above
Please upgrade to FortiSIEM version 6.4.1 or above
Timeline
2023-03-21: Initial publication