CVE-2021-21781

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
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:5.4.54:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*

History

21 Nov 2024, 05:48

Type Values Removed Values Added
References () https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243 - Exploit, Third Party Advisory () https://talosintelligence.com/vulnerability_reports/TALOS-2021-1243 - Exploit, Third Party Advisory
References () https://www.oracle.com/security-alerts/cpujul2022.html - Patch, Third Party Advisory () https://www.oracle.com/security-alerts/cpujul2022.html - Patch, Third Party Advisory

Information

Published : 2021-08-18 15:15

Updated : 2024-11-21 05:48


NVD link : CVE-2021-21781

Mitre link : CVE-2021-21781

CVE.ORG link : CVE-2021-21781


JSON object : View

Products Affected

oracle

  • communications_cloud_native_core_network_exposure_function
  • communications_cloud_native_core_policy
  • communications_cloud_native_core_binding_support_function

linux

  • linux_kernel
CWE
CWE-908

Use of Uninitialized Resource