Total vulnerabilities in the database
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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.1 | 5.4.173 |
| linux / linux_kernel | 5.5 | 5.10.93 |
| linux / linux_kernel | 5.11 | 5.15.16 |
| linux / linux_kernel | 5.16 | 5.16.2 |