Vulnerability Details : CVE-2023-1194
An out-of-bounds (OOB) memory read flaw was found in parse_lease_state in the KSMBD implementation of the in-kernel samba server and CIFS in the Linux kernel. When an attacker sends the CREATE command with a malformed payload to KSMBD, due to a missing check of `NameOffset` in the `parse_lease_state()` function, the `create_context` object can access invalid memory.
Products affected by CVE-2023-1194
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-1194
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-1194
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
2.8
|
5.2
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H |
2.8
|
4.2
|
Red Hat, Inc. |
CWE ids for CVE-2023-1194
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by: secalert@redhat.com (Secondary)
References for CVE-2023-1194
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https://access.redhat.com/security/cve/CVE-2023-1194
CVE-2023-1194- Red Hat Customer PortalThird Party Advisory
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https://www.spinics.net/lists/stable-commits/msg303065.html
Patch "ksmbd: fix out-of-bound read in parse_lease_state()" has been added to the 6.1-stable tree — Linux Stable CommitsMailing List;Patch
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https://bugzilla.redhat.com/show_bug.cgi?id=2154176
2154176 – (CVE-2023-1194) CVE-2023-1194 kernel: use-after-free in parse_lease_state()Issue Tracking;Third Party Advisory
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https://security.netapp.com/advisory/ntap-20231221-0006/
CVE-2023-1194 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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