Buffer overflow in Red Hat Enterprise Linux 10
CVE-2024-45776
When reading the language .mo file in grub_mofile_open(), grub2 fails to verify an integer overflow when allocating its internal buffer. A crafted .mo file may lead the buffer size calculation to overflow, leading to out-of-bound reads and writes. This flaw allows an attacker to leak sensitive data or overwrite critical data, possibly circumventing secure boot protections.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Red Hat Enterprise Linux 10 — versions 1:2.12-15.el10_0
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9 — versions 1:2.06-104.el9_6
- Red Hat In-Vehicle Operating System 1
- Red Hat Openshift Container Platform 4
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2025:16154 (vendor-advisory)
- access.redhat.com/errata/RHSA-2025:6990 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2024-45776 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
Frequently asked questions
- What is CVE-2024-45776?
- CVE-2024-45776 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Out-of-bounds Write. CVSS score: 6.7/10. Published 2025-02-18.
- How severe is CVE-2024-45776?
- Medium severity. CVSS v3 base score is 6.7 out of 10.