CVE-2021-21781
Updated: 2022-05-28 06:47:49.453575
Description:
An 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’s 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
| Links | NIST | CIRCL | RHEL | Ubuntu |
Severity
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | LOW | 2.1 |
| CVSS Version 3.x | LOW | 3.3 |
Status
| OS name | Project name | Version | Status | Errata | Last updated |
|---|---|---|---|---|---|
| CentOS 8.4 ELS | kernel | 4.18.0-305.25.1 | Needs triage | 2022-05-10 16:04:48.071576 | |
| CentOS 8.5 ELS | kernel | 4.18.0-348.7.1 | Needs triage | 2022-05-10 16:04:46.983756 |