Medium severity · published Feb 18, 2025
CVE-2024-45781
Grub2: fs/ufs: oob write in the heap
6.7
CVSS
0.3%
EPSS
No
On KEV
Description
A flaw was found in grub2. When reading a symbolic link's name from a UFS filesystem, grub2 fails to validate the string length taken as an input. The lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and eventually allowing an attacker to circumvent secure boot protections.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 8 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 9 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat OpenShift Container Platform 4 · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-45781
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-45781
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:16154
access.redhat.com
https://access.redhat.com/errata/RHSA-2025:6990
access.redhat.com
https://access.redhat.com/security/cve/CVE-2024-45781
bugzilla.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2345857
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