{"uuid": "9a05f1d5-7eae-48e3-8cce-188c4dd0e2ff", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-0686", "type": "seen", "source": "https://t.me/DarkWebInformer_CVEAlerts/6390", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2025-0686\n\ud83d\udd25 CVSS Score: 6.4 (cvssV3_1, Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H)\n\ud83d\udd39 Description: A flaw was found in grub2. When performing a symlink lookup from a romfs filesystem, grub's romfs filesystem module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the grub_romfs_read_symlink() may cause out-of-bounds writes when the calling grub_disk_read() function. This issue may be leveraged to corrupt grub's internal critical data and can result in arbitrary code execution by-passing secure boot protections.\n\ud83d\udccf Published: 2025-03-03T17:14:30.632Z\n\ud83d\udccf Modified: 2025-03-04T16:12:08.515Z\n\ud83d\udd17 References:\n1. https://access.redhat.com/security/cve/CVE-2025-0686\n2. https://bugzilla.redhat.com/show_bug.cgi?id=2346121", "creation_timestamp": "2025-03-04T16:31:51.000000Z"}