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PRIOn knowledge basePRION:CVE-2022-0185HistoryFeb 11, 2022 - 6:15 p.m.
Heap overflow
2022-02-1118:15:00
PRIOn knowledge base
www.prio-n.com
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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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| linux_kernel | ge | 5.1 | |
| linux_kernel | lt | 5.4.173 | |
| linux_kernel | ge | 5.5 | |
| linux_kernel | lt | 5.10.93 | |
| linux_kernel | ge | 5.11 | |
| linux_kernel | lt | 5.15.16 | |
| linux_kernel | ge | 5.16 | |
| linux_kernel | lt | 5.16.2 |
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