Red Hat Security Advisory: grub2 security update
Multiple security vulnerabilities have been identified in the grub2 boot loader packages used by Red Hat Enterprise Linux 10. These include integer overflows leading to heap out-of-bounds (OOB) read and write, use-after-free conditions, and a security bypass related to the dump command under secure boot. Red Hat has released an updated grub2 package to address these issues. The update is rated as having a moderate security impact. Users of affected Red Hat Enterprise Linux 10 variants are advised to apply the update as detailed in the vendor advisory.
AI Analysis
Technical Summary
The Red Hat grub2 packages contain several security flaws: CVE-2024-45776 involves an integer overflow in grub-core/gettext causing heap OOB read and write; CVE-2024-45781 is an OOB write in the heap within the fs/ufs component; CVE-2025-0622 is a use-after-free vulnerability in the command/gpg module due to hooks not being removed on module unload; CVE-2025-0677 is an integer overflow in UFS handling symlinks leading to heap OOB write; CVE-2025-1118 concerns the dump command not being locked down when secure boot is enabled. These vulnerabilities affect various architectures supported by Red Hat Enterprise Linux 10. Red Hat has issued a security advisory (RHSA-2025:16154) with updated packages to fix these issues.
Potential Impact
The vulnerabilities can lead to heap out-of-bounds read and write conditions, use-after-free, and security bypass scenarios in the grub2 boot loader. These issues could potentially compromise system integrity during the boot process. The overall security impact is rated as moderate by Red Hat. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated grub2 packages for Red Hat Enterprise Linux 10 to address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:16154 and the referenced article https://access.redhat.com/articles/11258. Applying this official fix mitigates the vulnerabilities. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: grub2 security update
Description
Multiple security vulnerabilities have been identified in the grub2 boot loader packages used by Red Hat Enterprise Linux 10. These include integer overflows leading to heap out-of-bounds (OOB) read and write, use-after-free conditions, and a security bypass related to the dump command under secure boot. Red Hat has released an updated grub2 package to address these issues. The update is rated as having a moderate security impact. Users of affected Red Hat Enterprise Linux 10 variants are advised to apply the update as detailed in the vendor advisory.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat grub2 packages contain several security flaws: CVE-2024-45776 involves an integer overflow in grub-core/gettext causing heap OOB read and write; CVE-2024-45781 is an OOB write in the heap within the fs/ufs component; CVE-2025-0622 is a use-after-free vulnerability in the command/gpg module due to hooks not being removed on module unload; CVE-2025-0677 is an integer overflow in UFS handling symlinks leading to heap OOB write; CVE-2025-1118 concerns the dump command not being locked down when secure boot is enabled. These vulnerabilities affect various architectures supported by Red Hat Enterprise Linux 10. Red Hat has issued a security advisory (RHSA-2025:16154) with updated packages to fix these issues.
Potential Impact
The vulnerabilities can lead to heap out-of-bounds read and write conditions, use-after-free, and security bypass scenarios in the grub2 boot loader. These issues could potentially compromise system integrity during the boot process. The overall security impact is rated as moderate by Red Hat. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated grub2 packages for Red Hat Enterprise Linux 10 to address these vulnerabilities. Users should apply the security update as described in the Red Hat advisory RHSA-2025:16154 and the referenced article https://access.redhat.com/articles/11258. Applying this official fix mitigates the vulnerabilities. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:16154
- Cve Count
- 5
- Additional Cves
- ["CVE-2024-45781","CVE-2025-0622","CVE-2025-0677","CVE-2025-1118"]
Threat ID: 6a419cb427e9c79719abc9ad
Added to database: 06/28/2026, 22:14:12 UTC
Last enriched: 06/28/2026, 22:29:46 UTC
Last updated: 09/10/2026, 19:36:48 UTC
Views: 111
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