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CVE-2025-0624

Grub2: net: out-of-bounds write in grub_net_search_config_file()

HIGH 7.6

At a glance

Source
NVD
EPSS
EPSS 1.41 % · percentile 72 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Deferred

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.6CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hredhat
CVSS 3.1HIGH 7.6CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:HNVD · secalert@redhat.com (Secondary)

European references

CERT-FR advisories

Affected products

ProductVersions
grub2affected 0 ≤ 2.12
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 1:2.02-0.87.el7_9.15 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 1:2.02-162.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 1:2.02-87.el8_2.13 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 1:2.02-99.el8_4.12 < *
Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Serviceunaffected 1:2.02-99.el8_4.12 < *
Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutionsunaffected 1:2.02-99.el8_4.12 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 1:2.02-123.el8_6.18 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 1:2.02-123.el8_6.18 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 1:2.02-123.el8_6.18 < *
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Supportunaffected 1:2.02-152.el8_8.2 < *
Red Hat · Red Hat Enterprise Linux 9unaffected 1:2.06-94.el9_5 < *
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutionsunaffected 1:2.06-27.el9_0.22 < *
Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Supportunaffected 1:2.06-61.el9_2.10 < *
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Supportunaffected 1:2.06-86.el9_4.2 < *
Red Hat · Red Hat OpenShift Container Platform 4.12unaffected 412.86.202503310142-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.13unaffected 413.92.202504070146-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.14unaffected 414.92.202505141057-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.15unaffected 415.92.202504282058-0 < *
Red Hat · Red Hat OpenShift Container Platform 4.16unaffected 416.94.202503252048-0 < *

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD