Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2022-0168
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-0168
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 11 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-0168
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
CWE ids for CVE-2022-0168
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2022-0168
-
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d6f5e358452479fa8a773b5c6ccc9e4ec5a20880
kernel/git/torvalds/linux.git - Linux kernel source treeMailing List;Patch;Vendor Advisory
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https://bugzilla.redhat.com/show_bug.cgi?id=2037386
2037386 – (CVE-2022-0168) CVE-2022-0168 kernel: smb2_ioctl_query_info NULL Pointer DereferenceIssue Tracking;Patch;Third Party Advisory
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https://access.redhat.com/security/cve/CVE-2022-0168
CVE-2022-0168- Red Hat Customer PortalThird Party Advisory
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