Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Local
0

CVE-2023-20593

Disclosure Date: July 24, 2023 •
CVE-2023-20593 CVSS v3 Base Score: 5.5
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.

Add Assessment

No one has assessed this topic. Be the first to add your voice to the community.

CVSS V3 Severity and Metrics
Base Score:
5.5 Medium
Impact Score:
3.6
Exploitability Score:
1.8
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector (AV):
Local
Attack Complexity (AC):
Low
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
Ryzen™ 3000 Series Desktop Processors “Matisse” AM4 not down converted
AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics “Renoir” AM4 not down converted
3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT not down converted
Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS SP3 not down converted
Ryzen™ 5000 Series Mobile processors with Radeon™ Graphics “Lucienne” not down converted
Ryzen™ 4000 Series Mobile processors with Radeon™ Graphics “Renoir” not down converted
Ryzen™ 7020 Series processors “Mendocino” FT6 not down converted
2nd Gen AMD EPYC™ Processors not down converted
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • amd,
  • debian,
  • xen

Products

  • athlon gold 7220u firmware -,
  • debian linux 10.0,
  • debian linux 11.0,
  • debian linux 12.0,
  • epyc 7232p firmware -,
  • epyc 7252 firmware -,
  • epyc 7262 firmware -,
  • epyc 7272 firmware -,
  • epyc 7282 firmware -,
  • epyc 7302 firmware -,
  • epyc 7302p firmware -,
  • epyc 7352 firmware -,
  • epyc 7402 firmware -,
  • epyc 7402p firmware -,
  • epyc 7452 firmware -,
  • epyc 7502 firmware -,
  • epyc 7502p firmware -,
  • epyc 7532 firmware -,
  • epyc 7542 firmware -,
  • epyc 7552 firmware -,
  • epyc 7642 firmware -,
  • epyc 7662 firmware -,
  • epyc 7702 firmware -,
  • epyc 7702p firmware -,
  • epyc 7742 firmware -,
  • epyc 7f32 firmware -,
  • epyc 7f52 firmware -,
  • epyc 7f72 firmware -,
  • epyc 7h12 firmware -,
  • ryzen 3 3100 firmware -,
  • ryzen 3 3300x firmware -,
  • ryzen 3 4300g firmware -,
  • ryzen 3 4300ge firmware -,
  • ryzen 3 5300u firmware -,
  • ryzen 3 7320u firmware -,
  • ryzen 3 pro 4200g firmware -,
  • ryzen 3 pro 4350g firmware -,
  • ryzen 3 pro 4350ge firmware -,
  • ryzen 3 pro 4450u firmware -,
  • ryzen 5 3500 firmware -,
  • ryzen 5 3500x firmware -,
  • ryzen 5 3600 firmware -,
  • ryzen 5 3600x firmware -,
  • ryzen 5 3600xt firmware -,
  • ryzen 5 4600g firmware -,
  • ryzen 5 4600ge firmware -,
  • ryzen 5 5500u firmware -,
  • ryzen 5 7520u firmware -,
  • ryzen 5 pro 4400g firmware -,
  • ryzen 5 pro 4650g firmware -,
  • ryzen 5 pro 4650ge firmware -,
  • ryzen 7 3700x firmware -,
  • ryzen 7 3800x firmware -,
  • ryzen 7 3800xt firmware -,
  • ryzen 7 4700g firmware -,
  • ryzen 7 4700ge firmware -,
  • ryzen 7 5700u firmware -,
  • ryzen 7 pro 4750g firmware -,
  • ryzen 7 pro 4750ge firmware -,
  • ryzen 7 pro 4750u firmware -,
  • ryzen 9 3900 firmware -,
  • ryzen 9 3900x firmware -,
  • ryzen 9 3900xt firmware -,
  • ryzen 9 3950x firmware -,
  • ryzen 9 pro 3900 firmware -,
  • ryzen threadripper 3960x firmware -,
  • ryzen threadripper 3970x firmware -,
  • ryzen threadripper 3990x firmware -,
  • ryzen threadripper pro 3945wx firmware -,
  • ryzen threadripper pro 3955wx firmware -,
  • ryzen threadripper pro 3975wx firmware -,
  • ryzen threadripper pro 3995wx firmware -,
  • xen 4.14.0,
  • xen 4.15.0,
  • xen 4.16.0,
  • xen 4.17.0

References

Canonical
CVE-2023-20593 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20593)
Exploit
PoCs that have not been added by contributors directly have been sourced from: nomi-sec/PoC-in-GitHub.
A PoC added here by the AKB Worker must have at least 2 GitHub stars.
stop-zenbleed-win (https://github.com/sbaresearch/stop-zenbleed-win) (Added by AKB Worker)
Miscellaneous
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7008
http://www.openwall.com/lists/oss-security/2023/07/24/3
http://www.openwall.com/lists/oss-security/2023/07/25/5
http://www.openwall.com/lists/oss-security/2023/07/25/6
http://www.openwall.com/lists/oss-security/2023/07/25/1
http://www.openwall.com/lists/oss-security/2023/07/25/13
http://www.openwall.com/lists/oss-security/2023/07/25/17
http://www.openwall.com/lists/oss-security/2023/07/25/12
http://www.openwall.com/lists/oss-security/2023/07/25/16
http://www.openwall.com/lists/oss-security/2023/07/25/14
http://www.openwall.com/lists/oss-security/2023/07/25/15
http://seclists.org/fulldisclosure/2023/Jul/43
http://www.openwall.com/lists/oss-security/2023/07/26/1
https://cmpxchg8b.com/zenbleed.html
http://xenbits.xen.org/xsa/advisory-433.html
https://www.debian.org/security/2023/dsa-5459
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
https://www.debian.org/security/2023/dsa-5462
https://www.debian.org/security/2023/dsa-5461
https://lists.debian.org/debian-lts-announce/2023/07/msg00033.html
http://www.openwall.com/lists/oss-security/2023/07/31/2
https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SD2G74BXS2SWOE3FIQJ6X76S3A7PDGML/
http://www.openwall.com/lists/oss-security/2023/08/08/7
http://www.openwall.com/lists/oss-security/2023/08/08/8
http://www.openwall.com/lists/oss-security/2023/08/08/6
http://www.openwall.com/lists/oss-security/2023/08/16/4
http://www.openwall.com/lists/oss-security/2023/08/16/5
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CP6WQO3CDPLE5O635N7TAL5KCZ6HZ4FE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HKKYIK2EASDNUV4I7EFJKNBVO3KCKGRR/
http://www.openwall.com/lists/oss-security/2023/09/22/9
http://www.openwall.com/lists/oss-security/2023/09/22/11
http://www.openwall.com/lists/oss-security/2023/09/25/4
http://www.openwall.com/lists/oss-security/2023/09/25/7
https://security.netapp.com/advisory/ntap-20240531-0004/

Additional Info

Authenticated
Unknown
Exploitable
Unknown
Reliability
Unknown
Stability
Unknown
Available Mitigations
Unknown
Shelf Life
Unknown
Userbase/Installbase
Unknown
Patch Effectiveness
Unknown
Technical Analysis