Vulnerability in AMD 1st Gen Epyc™ Processors
CVE-2023-20569
A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.073 (94.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.073 · newest: 0.073 · change: 0.000
Affected products
- AMD 1st Gen Epyc™ Processors — versions various
- AMD 2nd Gen Epyc™ Processors — versions various
- AMD 3rd Gen Epyc™ Processors — versions various
- AMD 4th Gen Epyc™ Processors — versions various
- AMD Athlon™ 3000 Series Mobile Processors With Radeon™ Graphics — versions various
- AMD Athlon™ 3000 Series Processors With Radeon™ Graphics — versions various
- AMD Athlon™ Pro 3000 Series Processors With Radeon™ Vega Graphics — versions various
- AMD Epyc 72f3
- AMD Epyc 72f3 Firmware
- AMD Epyc 7313
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7005 (vendor-advisory, Vendor Advisory)
- xenbits.xen.org/xsa/advisory-434.html (Third Party Advisory)
- www.openwall.com/lists/oss-security/2023/08/08/4 (Mailing List)
- comsec.ethz.ch/research/microarch/inception/ (Exploit, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List)
- lists.debian.org/debian-lts-announce/2023/08/msg00013.html (Mailing List)
- www.debian.org/security/2023/dsa-5475 (Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-20569?
- CVE-2023-20569 is a medium-severity vulnerability in AMD 1st Gen Epyc™ Processors, classified under Observable Discrepancy. CVSS score: 4.7/10. Published 2023-08-08.
- How severe is CVE-2023-20569?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2023-20569 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.