Vulnerability Details : CVE-2021-26333
An information disclosure vulnerability exists in AMD Platform Security Processor (PSP) chipset driver. The discretionary access control list (DACL) may allow low privileged users to open a handle and send requests to the driver resulting in a potential data leak from uninitialized physical pages.
Vulnerability category: Information leak
Products affected by CVE-2021-26333
- cpe:2.3:a:amd:chipset_driver:*:*:*:*:*:*:*:*
- cpe:2.3:a:amd:psp_driver:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26333
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 14 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26333
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.9
|
MEDIUM | AV:L/AC:L/Au:N/C:C/I:N/A:N |
3.9
|
6.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-26333
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: psirt@amd.com (Secondary)
-
The product does not initialize a critical resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26333
-
http://packetstormsecurity.com/files/164202/AMD-Chipset-Driver-Information-Disclosure-Memory-Leak.html
AMD Chipset Driver Information Disclosure / Memory Leak ≈ Packet StormThird Party Advisory;VDB Entry
-
http://seclists.org/fulldisclosure/2021/Sep/24
Full Disclosure: AMD Chipset Driver Information Disclosure Vulnerability [CVE-2021-26333]Mailing List;Third Party Advisory
-
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1009
Access DeniedVendor Advisory
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