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.

CVSS v3.0 8.4 HIGH
CVSS v2.0 7.2 HIGH

8.4^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/Crusaders-of-Rust/CVE-2022-0185	Exploit Third Party Advisory
https://www.openwall.com/lists/oss-security/2022/01/18/7	Mailing List Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2	Mailing List Patch Vendor Advisory
https://www.willsroot.io/2022/01/cve-2022-0185.html	Exploit Third Party Advisory
https://security.netapp.com/advisory/ntap-20220225-0003/

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2022-02-11 18:15

Updated : 2022-02-25 10:15

NVD link : CVE-2022-0185

Mitre link : CVE-2022-0185

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-190

Integer Overflow or Wraparound

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