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I. Basic Information for CVE-2023-52893
Vulnerability Information

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Vulnerability Title
gsmi: fix null-deref in gsmi_get_variable
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gsmi: fix null-deref in gsmi_get_variable We can get EFI variables without fetching the attribute, so we must allow for that in gsmi. commit 859748255b43 ("efi: pstore: Omit efivars caching EFI varstore access layer") added a new get_variable call with attr=NULL, which triggers panic in gsmi.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于 gsmi 组件在获取EFI变量时存在空指针解引用问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux 74c5b31c6618f01079212332b2e5f6c42f2d6307 ~ ee5763ef829bd923033510de6d1df7c73f085e4b -
LinuxLinux 3.0 -
II. Public POCs for CVE-2023-52893
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III. Intelligence Information for CVE-2023-52893
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IV. Related Vulnerabilities
V. Comments for CVE-2023-52893

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