Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Not supplied / Not supplied | affected 0 through 2.12 |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 1:2.02-0.87.el7_9.15 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 1:2.02-162.el8_10 before * |
| Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 1:2.02-87.el8_2.13 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 1:2.02-99.el8_4.12 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Telecommunications Update Service | unaffected 1:2.02-99.el8_4.12 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | unaffected 1:2.02-99.el8_4.12 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 1:2.02-123.el8_6.18 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 1:2.02-123.el8_6.18 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | unaffected 1:2.02-123.el8_6.18 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Extended Update Support | unaffected 1:2.02-152.el8_8.2 before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 1:2.06-94.el9_5 before * |
| Red Hat / Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | unaffected 1:2.06-27.el9_0.22 before * |
| Red Hat / Red Hat Enterprise Linux 9.2 Extended Update Support | unaffected 1:2.06-61.el9_2.10 before * |
| Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 1:2.06-86.el9_4.2 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.12 | unaffected 412.86.202503310142-0 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.13 | unaffected 413.92.202504070146-0 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.14 | unaffected 414.92.202505141057-0 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.15 | unaffected 415.92.202504282058-0 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.16 | unaffected 416.94.202503252048-0 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.17 | unaffected 417.94.202503241418-0 before * |
| Red Hat / Red Hat OpenShift Container Platform 4.18 | unaffected 418.94.202504021150-0 before * |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected |
CWE
CWE-787
References
- https://access.redhat.com/errata/RHSA-2025:2521
- https://access.redhat.com/errata/RHSA-2025:2653
- https://access.redhat.com/errata/RHSA-2025:2655
- https://access.redhat.com/errata/RHSA-2025:2675
- https://access.redhat.com/errata/RHSA-2025:2784
- https://access.redhat.com/errata/RHSA-2025:2799
- https://access.redhat.com/errata/RHSA-2025:2867
- https://access.redhat.com/errata/RHSA-2025:2869
- https://access.redhat.com/errata/RHSA-2025:3297
- https://access.redhat.com/errata/RHSA-2025:3301
- https://access.redhat.com/errata/RHSA-2025:3367
- https://access.redhat.com/errata/RHSA-2025:3396
- https://access.redhat.com/errata/RHSA-2025:3573
- https://access.redhat.com/errata/RHSA-2025:3577
- https://access.redhat.com/errata/RHSA-2025:3780
- https://access.redhat.com/errata/RHSA-2025:4422
- https://access.redhat.com/errata/RHSA-2025:7702
- https://access.redhat.com/security/cve/CVE-2025-0624
- https://bugzilla.redhat.com/show_bug.cgi?id=2346112
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.