CVE-2024-45776— Grub2: grub-core/gettext: integer overflow leads to heap oob write and read.
Quick assessment
Affected
CVE-2024-45776
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。 GRUB存在缓冲区错误漏洞，该漏洞源于.mo文件读取时整数溢出未校验，会导致越界读写并绕过安全启动。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 6
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| None | None | ≤ 2.12 |
affected |
| Red Hat | Red Hat Enterprise Linux 10 | 1:2.12-15.el10_0< * |
unaffected |
| Red Hat | Red Hat Enterprise Linux 7 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 8 | any |
unaffected |
| Red Hat | Red Hat Enterprise Linux 9 | 1:2.06-104.el9_6< * |
unaffected |
| Red Hat | Red Hat OpenShift Container Platform 4 | any |
affected |
I. Basic Information for CVE-2024-45776
Vulnerability Information
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Vulnerability Title
Grub2: grub-core/gettext: integer overflow leads to heap oob write and read.
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/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
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。 GRUB存在缓冲区错误漏洞，该漏洞源于.mo文件读取时整数溢出未校验，会导致越界读写并绕过安全启动。
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 10 | 1:2.12-15.el10_0 ~ * |
cpe:/o:redhat:enterprise_linux:10.0
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 1:2.06-104.el9_6 ~ * |
cpe:/o:redhat:enterprise_linux:9::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
II. Public POCs for CVE-2024-45776
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2024-45776 (3)
-
-
2339182 – (CVE-2024-45776) CVE-2024-45776 grub2: grub-core/gettext: Integer overflow leads to Heap OOB Write and Read. issue-tracking x_refsource_REDHAT
-
🔗 RHSA-2025:6990 - Security Advisory - Red Hat Customer Portal Read full article vendor-advisory x_refsource_REDHAT
IV. Related Vulnerabilities
Same weakness: CWE-787
-
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Vulnerabilities in IBM AIX and PowerVM VIOS -
CVE-2026-19437
Vulnerabilities in IBM AIX and PowerVM VIOS -
CVE-2026-18842
Vulnerabilities in IBM AIX and PowerVM VIOS
V. Comments for CVE-2024-45776
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