CVE-2022-36449
Arm Mali CSF Missing Buffer Size Check
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
An issue was discovered in the Arm Mali GPU Kernel Driver. A non-privileged user can make improper GPU processing operations to gain access to already freed memory, write a limited amount outside of buffer bounds, or to disclose details of memory mappings. This affects Midgard r4p0 through r32p0, Bifrost r0p0 through r38p0 and r39p0 before r38p1, and Valhall r19p0 through r38p0 and r39p0 before r38p1.
Se ha detectado un problema en el controlador del kernel de la GPU Arm Mali. Un usuario no privilegiado puede realizar operaciones inapropiadas de procesamiento de la GPU para conseguir acceso a la memoria ya liberada, escribir una cantidad limitada fuera de límites del búfer o divulgar detalles de las asignaciones de memoria. Esto afecta a Midgard versiones r4p0 hasta r32p0, Bifrost versiones r0p0 hasta r38p0 y r39p0 anteriores a r38p1, y Valhall versiones r19p0 hasta r38p0 y r39p0 anteriores a r38p1
In the Linux Mali driver, when building with MALI_USE_CSF, the VFS read handler of the main Mali file descriptor (kbase_read()) never looks at its "count" parameter. This means that a simple userspace program that sets up a Mali file descriptor, then calls read(mali_fd, buf, 1), will see read() returning a higher length than requested, and out-of-bounds data in the userspace buffer will be clobbered.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-07-25 CVE Reserved
- 2022-09-01 CVE Published
- 2024-05-06 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/168431/Arm-Mali-Released-Buffer-Use-After-Free.html | Third Party Advisory |
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| http://packetstormsecurity.com/files/168432/Arm-Mali-Physical-Address-Exposure.html | Third Party Advisory |
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| http://packetstormsecurity.com/files/168433/Arm-Mali-Race-Condition.html | Third Party Advisory |
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| http://packetstormsecurity.com/files/168434/Arm-Mali-CSF-Missing-Buffer-Size-Check.html | Third Party Advisory |
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| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities | 2022-09-29 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Arm Search vendor "Arm" | Bifrost Search vendor "Arm" for product "Bifrost" | >= r0p0 <= r38p0 Search vendor "Arm" for product "Bifrost" and version " >= r0p0 <= r38p0" | - |
Affected
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| Arm Search vendor "Arm" | Bifrost Search vendor "Arm" for product "Bifrost" | r39p0 Search vendor "Arm" for product "Bifrost" and version "r39p0" | - |
Affected
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| Arm Search vendor "Arm" | Midgard Search vendor "Arm" for product "Midgard" | >= r4p0 <= r32p0 Search vendor "Arm" for product "Midgard" and version " >= r4p0 <= r32p0" | - |
Affected
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| Arm Search vendor "Arm" | Valhall Search vendor "Arm" for product "Valhall" | >= r19p0 <= r38p0 Search vendor "Arm" for product "Valhall" and version " >= r19p0 <= r38p0" | - |
Affected
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| Arm Search vendor "Arm" | Valhall Search vendor "Arm" for product "Valhall" | r39p0 Search vendor "Arm" for product "Valhall" and version "r39p0" | - |
Affected
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