ID CVE-2021-21781
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
References
Vulnerable Configurations
  • cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:5.4.54:*:*:*:*:*:*:*
    cpe:2.3:o:linux:linux_kernel:5.4.54:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:*
  • cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
    cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:*
CVSS
Base: 2.1 (as of 03-02-2023 - 14:31)
Impact:
Exploitability:
CWE CWE-908
CAPEC
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE NONE
cvss-vector via4 AV:L/AC:L/Au:N/C:P/I:N/A:N
Last major update 03-02-2023 - 14:31
Published 18-08-2021 - 15:15
Last modified 03-02-2023 - 14:31
Back to Top