CVE-2023-20593

Quick assessment

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Affected

AMD Ryzen™ 3000 Series Desktop Processors “Matisse” AM4

Exploitation

Public or AI PoC available; prioritize validation

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

AMD EPYC是美国超威半导体（AMD）公司的一款x86架构服务器微处理器产品线，中文名为“霄龙”，采用Zen微架构。 AMD EPYC存在安全漏洞，该漏洞源于在特定微架构环境下,允许攻击者访问敏感信息。

CVE-2023-20593 affects AMD Ryzen™ 3000 Series Desktop Processors “Matisse” AM4. Public or AI PoC available; prioritize validation. AMD EPYC是美国超威半导体（AMD）公司的一款x86架构服务器微处理器产品线，中文名为“霄龙”，采用Zen微架构。 AMD EPYC存在安全漏洞，该漏洞源于在特定微架构环境下,允许攻击者访问敏感信息。 CVE-2023-20593 vulnerability details, Shenlong CVE Platform, https://cve.imfht.com/detail/CVE-2023-20593

I. Basic Information for CVE-2023-20593

Affected Products

II. Public POCs for CVE-2023-20593

III. Intelligence Information for CVE-2023-20593

Vendor Advisories for CVE-2023-20593 (4)

• https://security.netapp.com/advisory/ntap-20240531-0004/
• https://www.debian.org/security/2023/dsa-5462
• https://www.debian.org/security/2023/dsa-5461
• https://www.debian.org/security/2023/dsa-5459

Mailing List Discussions for CVE-2023-20593 (27)

• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HKKYIK2EASDNUV4I7EFJKNBVO3KCKGRR/
• http://www.openwall.com/lists/oss-security/2023/08/16/4
• http://www.openwall.com/lists/oss-security/2023/08/08/8
• http://www.openwall.com/lists/oss-security/2023/09/22/11
• http://www.openwall.com/lists/oss-security/2023/08/08/7
• http://www.openwall.com/lists/oss-security/2023/07/24/3
• http://seclists.org/fulldisclosure/2023/Jul/43
• http://www.openwall.com/lists/oss-security/2023/08/16/5
• http://www.openwall.com/lists/oss-security/2023/07/25/12
• http://www.openwall.com/lists/oss-security/2023/07/25/5
• http://www.openwall.com/lists/oss-security/2023/09/22/9
• 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/2023/07/25/14
• http://www.openwall.com/lists/oss-security/2023/07/25/17
• http://www.openwall.com/lists/oss-security/2023/07/25/6
• https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CP6WQO3CDPLE5O635N7TAL5KCZ6HZ4FE/
• http://www.openwall.com/lists/oss-security/2023/07/31/2
• https://lists.debian.org/debian-lts-announce/2023/07/msg00033.html
• http://www.openwall.com/lists/oss-security/2023/07/25/16
• http://www.openwall.com/lists/oss-security/2023/09/25/7
• https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
• http://www.openwall.com/lists/oss-security/2023/07/25/15
• http://www.openwall.com/lists/oss-security/2023/07/26/1
• http://www.openwall.com/lists/oss-security/2023/08/08/6
• http://www.openwall.com/lists/oss-security/2023/09/25/4

Other References for CVE-2023-20593 (3)

• https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7008 vendor-advisory
• http://xenbits.xen.org/xsa/advisory-433.html
• https://cmpxchg8b.com/zenbleed.html

• https://www.cve.org/CVERecord?id=CVE-2023-20593

IV. Related Vulnerabilities

V. Comments for CVE-2023-20593