CVE-2021-21781 (GCVE-0-2021-21781)

Vulnerability from cvelistv5 – Published: 2021-08-18 14:37 – Updated: 2024-08-03 18:23
VLAI?
Summary
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
Severity ?
4 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
Vendor Product Version
n/a Linux Kernel Affected: Linux Kernel v5.4.54, Linux Kernel v5.4.66
Show details on NVD website
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