Detections
Analytics
CVE-2022-0185
high
Description
A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.
References
https://www.mandiant.com/resources/blog/initial-access-brokers-exploit-f5-screenconnect
https://www.tenable.com/cyber-exposure/tenable-2022-threat-landscape-report
https://www.openwall.com/lists/oss-security/2022/01/18/7
https://security.netapp.com/advisory/ntap-20220225-0003/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2