CVE-2023-20540
Possible ATT&CK Techniques 1AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4 1.0.0.E | unaffected |
ComboAM4v2PI 1.2.0.CA | unaffected | ||
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4v2PI 1.2.0.CA | unaffected |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | CastlePeakPI-SP3r3 1.0.0.C | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | CastlePeakWSPI-sWRX8 1.0.0.E | unaffected |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors | ChagallWSPI-sWRX8 1.0.0.9 | unaffected |
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I. Basic Information for CVE-2023-20540
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An observable timing discrepancy in the ASP could allow a privileged attacker to perform a brute-force attack against the hash message authentication code, allowing arbitrary message input, potentially leading to a loss of data integrity.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过时间差异性导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
AMD Ryzen™ 3000 Series Desktop Processors 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD AMD RyzenTM 3000 Series Desktop Processors是美国AMD公司的桌面处理器。 AMD Ryzen™ 3000 Series Desktop Processors存在信息泄露漏洞，该漏洞源于ASP中的可观察时序差异，可能导致具有特权的攻击者对哈希消息认证码进行暴力破解攻击，造成任意消息输入，进而导致数据完整性损失。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| AMD | AMD Ryzen™ 3000 Series Desktop Processors | ComboAM4 1.0.0.E | - | |
| AMD | AMD Ryzen™ 5000 Series Desktop Processors | ComboAM4v2PI 1.2.0.CA | - | |
| AMD | AMD Ryzen™ Threadripper™ 3000 Series Processors | CastlePeakPI-SP3r3 1.0.0.C | - | |
| AMD | AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors | CastlePeakWSPI-sWRX8 1.0.0.E | - | |
| AMD | AMD Ryzen™ Threadripper™ PRO 5000 WX-Series Processors | ChagallWSPI-sWRX8 1.0.0.9 | - |
II. Public POCs for CVE-2023-20540
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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Vendor Advisories for CVE-2023-20540 (1)
IV. Related Vulnerabilities
Same weakness: CWE-208
- CVE-2026-54736
Phalcon: Non-constant-time HMAC verification in `Encryption\ - CVE-2026-59218
Open WebUI: Account enumeration via observable login timing - CVE-2026-15041
389-ds-base: 389-ds-base: non-constant-time comparison in pb - CVE-2026-41516
OP-TEE: Hisilicon HPRE PKCS#1 v1.5 Decryption Padding Oracle - CVE-2026-41515
OP-TEE: RSA-OAEP padding oracle in NXP CAAM driver enables p
V. Comments for CVE-2023-20540
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