Vulnerability Details : CVE-2023-4295
A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.
Vulnerability category: Overflow
Products affected by CVE-2023-4295
- cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*
- cpe:2.3:a:arm:mali_gpu_kernel_driver:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-4295
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-2023-4295
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
9.3
|
CRITICAL | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
2.5
|
6.0
|
Arm Limited | |
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-2023-4295
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by:
- arm-security@arm.com (Secondary)
- 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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- arm-security@arm.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2023-4295
-
http://packetstormsecurity.com/files/176109/Arm-Mali-CSF-Overflow-Use-After-Free.html
Arm Mali CSF Overflow / Use-After-Free ≈ Packet StormThird Party Advisory
-
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
Mali GPU Driver VulnerabilitiesVendor Advisory
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