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安全漏洞
AMD CPU分支类型混淆漏洞(CVE-2022-23825)

发布日期:2022-07-12
更新日期:2022-07-13

受影响系统:
AMD Athlon™ X4 processor
AMD Ryzen™ Threadripper™ PRO processor
AMD 2nd Gen AMD Ryzen™ Threadripper™ processors
AMD 3rd Gen AMD Ryzen™ Threadripper™ processors
AMD 7th Generation AMD A-Series APUs
AMD Ryzen™ 2000 Series Desktop processors
AMD Ryzen™ 3000 Series Desktop processors
AMD Ryzen 4000 Series Desktop processors with Radeon
AMD Ryzen™ 2000 Series Mobile processor
AMD Athlon™ 3000 Series Mobile processors with Radeon™
AMD Ryzen™ 3000 Series Mobile processors
AMD 2nd Gen AMD Ryzen Mobile processors with Radeon
AMD Ryzen™ 4000 Series Mobile processors with Radeon™
AMD Ryzen™ 5000 Series Mobile processors with Radeon™
AMD Athlon™ Mobile processors with Radeon™ graphics
AMD 1st Gen AMD EPYC™ processors
AMD 2nd Gen AMD EPYC™ processors
描述:
CVE(CAN) ID: CVE-2022-23825

美国AMD(Advanced Micro Devices)半导体公司专门为计算机、通信和消费电子行业设计和制造各种创新的微处理器(CPU、GPU、主板芯片组、电视卡芯片等),以及提供闪存和低功率处理器解决方案。
AMD多款产品存在类型混淆漏洞,该漏洞源于branch predictor中的别名可能会导致某些AMD处理器预测错误的分支类型。攻击者可利用该漏洞导致信息泄漏。

<*来源:Kaveh Razavi
        Johannes Wikner
        Ke Sun
        Alyssa Milburn
        Henrique Kawakami
        Thais Moreira Hamasaki
        Lisa Aichele
        Emma Benoit
  
  链接:https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1037
*>

建议:
厂商补丁:

AMD
---
AMD已经为此发布了一个安全公告(&#8239;AMD-SB-1037)以及相应补丁:
&#8239;AMD-SB-1037:AMD CPU Branch Type Confusion
链接:https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1037

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