Information disclosure in AMD 2nd Gen Epyc™ Processors
CVE-2023-20593
An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.051 (92.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.052 · newest: 0.051 · change: -0.001
Affected products
- AMD 2nd Gen Epyc™ Processors — versions various
- AMD 3rd Gen Ryzen™ Threadripper™ Processors “Castle Peak” Hedt — versions various
- AMD Ryzen™ 4000 Series Desktop Processors With Radeon™ Graphics “Renoir” Am4 — versions various
- AMD Athlon Gold 7220u
- AMD Athlon Gold 7220u Firmware
- AMD Epyc 7232p
- AMD Epyc 7232p Firmware
- AMD Epyc 7252
- AMD Epyc 7252 Firmware
- AMD Epyc 7262
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7008 (vendor-advisory, Vendor Advisory)
- xenbits.xen.org/xsa/advisory-433.html (Patch, Mitigation, Vendor Advisory)
- www.openwall.com/lists/oss-security/2023/07/24/3 (Mailing List)
- seclists.org/fulldisclosure/2023/Jul/43 (Not Applicable)
- www.openwall.com/lists/oss-security/2023/07/25/5 (Mailing List)
- www.openwall.com/lists/oss-security/2023/07/25/6 (Mailing List)
- www.openwall.com/lists/oss-security/2023/07/25/1 (Mailing List)
- www.openwall.com/lists/oss-security/2023/07/25/13 (Mailing List)
- www.openwall.com/lists/oss-security/2023/07/25/17 (Mailing List)
- www.openwall.com/lists/oss-security/2023/07/25/12 (Mailing List)
Frequently asked questions
- What is CVE-2023-20593?
- CVE-2023-20593 is a medium-severity vulnerability in AMD 2nd Gen Epyc™ Processors, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 5.5/10. Published 2023-07-24.
- How severe is CVE-2023-20593?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-20593 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.