2020-08-04
ALT-BU-2020-3955-2
Branch p9 update bulletin.
Package kernel-image-std-def updated to version 5.4.55-alt1 for branch p9 in task 255621.
Closed vulnerabilities
Published: 2021-08-10
Modified: 2024-09-13
Modified: 2024-09-13
BDU:2021-03994
Уязвимость функционала ARM SIGPAGE ядра Linux, позволяющая нарушителю получить доступ к защищаемой информации
Severity: LOW (3.3)Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Severity: LOW (2.1)Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
References:
Published: 2021-08-18
Modified: 2024-11-21
Modified: 2024-11-21
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
Severity: LOW (2.1)Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
Severity: LOW (3.3)Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References: