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一、 漏洞 CVE-2023-40548 基础信息
漏洞信息
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Vulnerability Title
Shim: interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
跨界内存写
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Red Hat Shim 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Red Hat Shim是美国红帽（Red Hat）公司的一个简单的软件包。旨在用作 UEFI 系统上的第一阶段引导加载程序。 Red Hat Shim 存在安全漏洞。攻击者利用该漏洞会导致内存损坏，并可能导致启动阶段崩溃或数据完整性问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
厂商产品影响版本CPE订阅
Red HatRed Hat Enterprise Linux 7 0:15.8-3.el7 ~ * cpe:/o:redhat:enterprise_linux:7::server
Red HatRed Hat Enterprise Linux 7 0:15.8-1.el7 ~ * cpe:/o:redhat:enterprise_linux:7::server
Red HatRed Hat Enterprise Linux 8 0:15.8-4.el8_9 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 0:15.8-2.el8_2 ~ * cpe:/o:redhat:rhel_e4s:8.2::baseos
Red HatRed Hat Enterprise Linux 8.2 Telecommunications Update Service 0:15.8-2.el8_2 ~ * cpe:/o:redhat:rhel_e4s:8.2::baseos
Red HatRed Hat Enterprise Linux 8.2 Update Services for SAP Solutions 0:15.8-2.el8_2 ~ * cpe:/o:redhat:rhel_e4s:8.2::baseos
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:15.8-2.el8_4 ~ * cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service 0:15.8-2.el8_4 ~ * cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:15.8-2.el8_4 ~ * cpe:/o:redhat:rhel_e4s:8.4::baseos
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support 0:15.8-2.el8_6 ~ * cpe:/o:redhat:rhel_eus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 0:15.8-2.el8 ~ * cpe:/a:redhat:rhel_eus:8.8::crb
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 0:15.8-2.el8 ~ * cpe:/a:redhat:rhel_eus:8.8::crb
Red HatRed Hat Enterprise Linux 9 0:15.8-4.el9_3 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 0:15.8-3.el9 ~ * cpe:/a:redhat:rhel_eus:9.0::appstream
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 0:15.8-2.el9 ~ * cpe:/a:redhat:rhel_eus:9.0::appstream
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 0:15.8-2.el9 ~ * cpe:/a:redhat:rhel_eus:9.0::appstream
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:15.8-3.el9_2 ~ * cpe:/o:redhat:rhel_eus:9.2::baseos
二、漏洞 CVE-2023-40548 的公开POC
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三、漏洞 CVE-2023-40548 的情报信息
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IV. Related Vulnerabilities
Same product: Red Hat Enterprise Linux 7
Same vendor: Red Hat
Same weakness: CWE-787
V. Comments for CVE-2023-40548

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