CVE-2023-1192
Use-after-free in smb2_is_status_io_timeout()
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.
| CWE | CWE-416 |
| Vendor | n/a |
| Product | kernel |
| Published | Nov 1, 2023 |
| Last Updated | Feb 27, 2025 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
n/a / kernel
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 7
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Fedora / Fedora
All versions affected References
Credits
Red Hat would like to thank Pumpkin (@u1f383), working with DEVCORE Internship Program for reporting this issue.