CVE-2022-0185: Linux Kernel Heap-Based Buffer Overflow Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Linux Kernel Heap-Based Buffer Overflow Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.
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.
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · CWE-190
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
linux: linux_kernelkernel
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/Crusaders-of-Rust/CVE-2022-0185 (opens in new tab)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (opens in new tab)
- security.netapp.com/advisory/ntap-20220225-0003/ (opens in new tab)
- www.openwall.com/lists/oss-security/2022/01/18/7 (opens in new tab)
- www.willsroot.io/2022/01/cve-2022-0185.html (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)