CVE-2021-26311
AMD SEV/SEV-ES Memory Manipulation Arbitrary Code Execution Vulnerability
Description
In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.
INFO
Published Date :
May 13, 2021, 12:15 p.m.
Last Modified :
Nov. 21, 2024, 5:56 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
1.2
Affected Products
The following products are affected by CVE-2021-26311
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-26311.
| URL | Resource |
|---|---|
| https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004 | Vendor Advisory |
| https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-26311 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-26311 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
May. 25, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004 No Types Assigned https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004 Vendor Advisory Added CWE NIST CWE-77 Added CPE Configuration OR *cpe:2.3:h:amd:epyc_7232p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7251:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7252:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7261:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7262:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7272:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7281:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7282:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_72f3:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7301:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7302:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7302p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7313:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7313p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7343:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7351:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7351p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7352:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7371:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_73f3:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7401:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7401p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7402:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7402p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7413:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7443:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7443p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7451:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7452:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7453:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_74f3:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7501:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7502:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7502p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7513:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7532:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7542:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7543:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7543p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7551:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7551p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7552:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_75f3:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7601:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7642:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7643:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7662:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7663:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7702:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7702p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7713:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7713p:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7742:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7763:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7f32:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7f52:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7f72:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_7h12:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3101:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3151:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3201:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3251:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3255:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3351:-:*:*:*:*:*:*:* *cpe:2.3:h:amd:epyc_embedded_3451:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-26311 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-26311
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.00%
score
0.38203
percentile