Vulnerability Details : CVE-2023-2008
A flaw was found in the Linux kernel's udmabuf device driver. The specific flaw exists within a fault handler. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an array. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the kernel.
Vulnerability category: Execute code
Products affected by CVE-2023-2008
- 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:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.19:-:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-2008
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-2008
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2023-2008
-
The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-2008
-
https://bugzilla.redhat.com/show_bug.cgi?id=2186862
2186862 – (CVE-2023-2008) CVE-2023-2008 kernel: udmabuf: improper validation of array index leading to local privilege escalationIssue Tracking;Patch;Third Party Advisory
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https://github.com/torvalds/linux/commit/05b252cccb2e5c3f56119d25de684b4f810ba4
udmabuf: add back sanity check · torvalds/linux@05b252c · GitHubPatch
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https://www.zerodayinitiative.com/advisories/ZDI-23-441/
ZDI-23-441 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://security.netapp.com/advisory/ntap-20230517-0007/
CVE-2023-2008 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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