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.

Affected

AMD · Ryzen™ 3000 Series Desktop Processors · Ryzen™ PRO 3000 Series Desktop Processors · Ryzen™ 3000 Series Desktop Processors with Radeon™ Graphics · Ryzen™ PRO 3000 Series Processors with Radeon™ Vega Graphics · Athlon™ 3000 Series Processors with Radeon™ Graphics · Athlon™ PRO 3000 Series Processors with Radeon™ Vega Graphics

CVSS v3.1 NVD

4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

7.30% chance of exploitation in the next 30 days, 94th percentile

Published

2023-08-08

Updated

2024-09-23

Proof-of-concept exploits (1)

• https://comsec.ethz.ch/research/microarch/inception/

Security advisories

• https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7005
• http://xenbits.xen.org/xsa/advisory-434.html
• https://comsec.ethz.ch/research/microarch/inception
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/me…
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/me…
• https://www.debian.org/security/2023/dsa-5475

References

• CVE Record
• NVD entry