AMD Zen Information Disclosure Vulnerability

Source data

Overview

No cwe for this issue in AMD Zen allows an authorized attacker to disclose information locally.

Impact & technical details

Information Disclosure

What type of information could be disclosed by this vulnerability If the attacker has both the ability to modify the encrypted secret where it is stored and to observe the precise timing for the secret being decrypted by the application, the attacker could infer the original secret across many decryption attempts.

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability To exploit this vulnerability, an attacker would need to target an application by persisting encrypted secrets that are using specific old cryptography and Windows APIs.

CVSS base score

5.6 / 10

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C

Highest base score supplied by MSRC for this record; the vector belongs to that score. Ratings can vary by product. Microsoft Important is displayed as High; Moderate is displayed as Medium.

Affected products

• Windows 10 Version 1607 for 32-bit Systems
• Windows 10 Version 1607 for x64-based Systems
• Windows 10 Version 1809 for 32-bit Systems
• Windows 10 Version 1809 for x64-based Systems
• Windows 10 Version 21H2 for 32-bit Systems
• Windows 10 Version 21H2 for ARM64-based Systems
• Windows 10 Version 21H2 for x64-based Systems
• Windows 10 Version 22H2 for 32-bit Systems

Source guidance

Remediation

The source provides update references without a separate remediation summary. Review the applicable update links below.

At least one Microsoft vendor-fix reference is available. Check each affected product for its applicable update, prerequisites, and supported version.

Authoritative sources & updates

Findings and update information come from the linked publishers. GTP compiles the public record and provides the recommendation above. CVSS ratings shown here come from Microsoft. NVD references provide additional public context.

• Microsoft Security Response Center (opens in a new tab)
• Microsoft security update · 5120238 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120242 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120229 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120249 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120233 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120228 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5121003 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120994 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120240 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5121000 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120418 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)
• Microsoft security update · 5120385 (opens in a new tab)
• Microsoft remediation guidance (opens in a new tab)