CVE-2022-0185
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.
- Score
- CVSS 3.1 8.4 High
- Status
- Analyzed - secalert@redhat.com
- Published
- 2022-02-11
- Last modified
- 2025-10-21
- Known exploited (CISA KEV)
- since 2024-08-21, action due 2024-09-11: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
- Weaknesses
- CWE-190, CWE-191
Affected products
- Linux Kernel (Linux)
- H300e Firmware (Netapp)
- H300s Firmware (Netapp)
- H410c Firmware (Netapp)
- H410s Firmware (Netapp)
- H500e Firmware (Netapp)
- H500s Firmware (Netapp)
- H700e Firmware (Netapp)
- H700s Firmware (Netapp)
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2
- https://github.com/Crusaders-of-Rust/CVE-2022-0185
- https://security.netapp.com/advisory/ntap-20220225-0003/
- https://www.openwall.com/lists/oss-security/2022/01/18/7
- https://www.willsroot.io/2022/01/cve-2022-0185.html
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185
