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

Quick assessment

Affected
CVE-2025-0624
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

CVSS 7.6 · High EPSS 1.41% · P70

Affected Version Matrix 23

VendorProduct Version RangeStatus
None None ≤ 2.12 affected
Red Hat Red Hat Enterprise Linux 10 any unaffected
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 1:2.02-0.87.el7_9.15< * unaffected
Red Hat Red Hat Enterprise Linux 8 1:2.02-162.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 1:2.02-87.el8_2.13< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 1:2.02-99.el8_4.12< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service 1:2.02-99.el8_4.12< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions 1:2.02-99.el8_4.12< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 1:2.02-123.el8_6.18< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 1:2.02-123.el8_6.18< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 1:2.02-123.el8_6.18< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support 1:2.02-152.el8_8.2< * unaffected
Red Hat Red Hat Enterprise Linux 9 1:2.06-94.el9_5< * unaffected
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 1:2.06-27.el9_0.22< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Extended Update Support 1:2.06-61.el9_2.10< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 1:2.06-86.el9_4.2< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202503310142-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.13 413.92.202504070146-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202505141057-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202504282058-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202503252048-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202503241418-0< * unaffected
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202504021150-0< * unaffected

I. Basic Information for CVE-2025-0624

Vulnerability Information
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Grub2: net: out-of-bounds write in grub_net_search_config_file()
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
- - 0 ~ 2.12 -
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 1:2.02-0.87.el7_9.15 ~ * cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 1:2.02-162.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 1:2.02-87.el8_2.13 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 1:2.02-99.el8_4.12 ~ * cpe:/o:redhat:rhel_aus:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Telecommunications Update Service 1:2.02-99.el8_4.12 ~ * cpe:/o:redhat:rhel_aus:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions 1:2.02-99.el8_4.12 ~ * cpe:/o:redhat:rhel_aus:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 1:2.02-123.el8_6.18 ~ * cpe:/o:redhat:rhel_aus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 1:2.02-123.el8_6.18 ~ * cpe:/o:redhat:rhel_aus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 1:2.02-123.el8_6.18 ~ * cpe:/o:redhat:rhel_aus:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.8 Extended Update Support 1:2.02-152.el8_8.2 ~ * cpe:/o:redhat:rhel_eus:8.8::baseos
Red Hat Red Hat Enterprise Linux 9 1:2.06-94.el9_5 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red Hat Red 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 Hat Red Hat Enterprise Linux 9.2 Extended Update Support 1:2.06-61.el9_2.10 ~ * cpe:/o:redhat:rhel_eus:9.2::baseos
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 1:2.06-86.el9_4.2 ~ * cpe:/o:redhat:rhel_eus:9.4::baseos
Red Hat Red Hat OpenShift Container Platform 4.12 412.86.202503310142-0 ~ * cpe:/a:redhat:openshift:4.12::el8
Red Hat Red Hat OpenShift Container Platform 4.13 413.92.202504070146-0 ~ * cpe:/a:redhat:openshift:4.13::el8
Red Hat Red Hat OpenShift Container Platform 4.14 414.92.202505141057-0 ~ * cpe:/a:redhat:openshift:4.14::el8
Red Hat Red Hat OpenShift Container Platform 4.15 415.92.202504282058-0 ~ * cpe:/a:redhat:openshift:4.15::el8
Red Hat Red Hat OpenShift Container Platform 4.16 416.94.202503252048-0 ~ * cpe:/a:redhat:openshift:4.16::el9
Red Hat Red Hat OpenShift Container Platform 4.17 417.94.202503241418-0 ~ * cpe:/a:redhat:openshift:4.17::el9
Red Hat Red Hat OpenShift Container Platform 4.18 418.94.202504021150-0 ~ * cpe:/a:redhat:openshift:4.18::el9
Red Hat Red 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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Vendor Advisories for CVE-2025-0624 (17)

IV. Related Vulnerabilities

Same weakness: CWE-787

V. Comments for CVE-2025-0624

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