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.
History

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cve-icon MITRE Information

Status: PUBLISHED

Assigner: redhat

Published: 2022-02-11T17:40:57

Updated: 2022-02-25T09:06:15

Reserved: 2022-01-11T00:00:00


Link: CVE-2022-0185

JSON object: View

cve-icon NVD Information

Status : Analyzed

Published: 2022-02-11T18:15:10.890

Modified: 2023-06-26T18:55:31.587


Link: CVE-2022-0185

JSON object: View

cve-icon Redhat Information

No data.