NULL pointer dereference in Linux Kernel
CVE-2022-0168
A denial of service (DOS) issue was found in the Linux kernel’s smb2_ioctl_query_info function in the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.
EPSS: 0.003 (17.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel
- Redhat Enterprise_linux — versions 8.0, 9.0
- N/a Kernel — versions Affects v5.4–5.12, v5.13-rc+HEAD
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (Patch, Mailing List, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2022-0168?
- CVE-2022-0168 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 4.4/10. Published 2022-08-26.
- How severe is CVE-2022-0168?
- Medium severity. CVSS v3 base score is 4.4 out of 10.
- Is CVE-2022-0168 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.