{"vulnerability": "CVE-2021-21781", "sightings": [{"uuid": "fcd40e49-9fdf-415e-9cad-d7c9349864b7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-21781", "type": "seen", "source": "https://t.me/cibsecurity/27535", "content": "\u203c CVE-2021-21781 \u203c\n\nAn information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process\u00e2\u20ac\u2122s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2021-08-18T18:17:14.000000Z"}]}