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CVE-2025-0624— Grub2: net: out-of-bounds write in grub_net_search_config_file()

CVSS 7.6 · High EPSS 0.79% · P74
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I. Basic Information for CVE-2025-0624

Vulnerability Information
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Vulnerability Title
Grub2: net: out-of-bounds write in grub_net_search_config_file()
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
GNU GRUB 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GNU GRUB是GNU社区的一款Linux系统引导程序。 GNU GRUB存在缓冲区错误漏洞，该漏洞源于net模块的grub_net_search_config_file函数中包含一个越界写入问题。
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
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Support 1:2.02-0.87.el7_9.15 ~ * cpe:/o:redhat:rhel_els:7
Red HatRed Hat Enterprise Linux 8 1:2.02-162.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 1:2.02-87.el8_2.13 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 1:2.02-99.el8_4.12 ~ * cpe:/o:redhat:rhel_tus:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Service 1:2.02-99.el8_4.12 ~ * cpe:/o:redhat:rhel_tus:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutions 1:2.02-99.el8_4.12 ~ * cpe:/o:redhat:rhel_tus:8.4::baseos
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 1:2.02-123.el8_6.18 ~ * cpe:/o:redhat:rhel_tus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service 1:2.02-123.el8_6.18 ~ * cpe:/o:redhat:rhel_tus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions 1:2.02-123.el8_6.18 ~ * cpe:/o:redhat:rhel_tus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 1:2.02-152.el8_8.2 ~ * cpe:/o:redhat:rhel_eus:8.8::baseos
Red HatRed Hat Enterprise Linux 9 1:2.06-94.el9_5 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions 1:2.06-27.el9_0.22 ~ * cpe:/o:redhat:rhel_e4s:9.0::baseos
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 1:2.06-61.el9_2.10 ~ * cpe:/o:redhat:rhel_eus:9.2::baseos
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support 1:2.06-86.el9_4.2 ~ * cpe:/o:redhat:rhel_eus:9.4::baseos
Red HatRed Hat OpenShift Container Platform 4.12 412.86.202503310142-0 ~ * cpe:/a:redhat:openshift:4.12::el8
Red HatRed Hat OpenShift Container Platform 4.13 413.92.202504070146-0 ~ * cpe:/a:redhat:openshift:4.13::el8
Red HatRed Hat OpenShift Container Platform 4.14 414.92.202505141057-0 ~ * cpe:/a:redhat:openshift:4.14::el9
Red HatRed Hat OpenShift Container Platform 4.15 415.92.202504282058-0 ~ * cpe:/a:redhat:openshift:4.15::el9
Red HatRed Hat OpenShift Container Platform 4.16 416.94.202503252048-0 ~ * cpe:/a:redhat:openshift:4.16::el9
Red HatRed Hat OpenShift Container Platform 4.17 417.94.202503241418-0 ~ * cpe:/a:redhat:openshift:4.17::el9
Red HatRed Hat OpenShift Container Platform 4.18 418.94.202504021150-0 ~ * cpe:/a:redhat:openshift:4.18::el9
Red HatRed Hat Enterprise Linux 10-cpe:/o:redhat:enterprise_linux:10

II. Public POCs for CVE-2025-0624

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III. Intelligence Information for CVE-2025-0624

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IV. Related Vulnerabilities

Same weakness: CWE-787

V. Comments for CVE-2025-0624

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