All errata/p9/ALT-PU-2020-2497-1
ALT-PU-2020-2497-1

Package update kernel-image-std-def in branch p9

Version5.4.55-alt1
Task#255621
Published2020-08-03
Max severityLOW
Severity:

Closed issues (2)

BDU:2021-03994
LOW3.3

Уязвимость функционала ARM SIGPAGE ядра Linux, позволяющая нарушителю получить доступ к защищаемой информации

Published: 2021-08-10Modified: 2024-09-13
CVSS 3.xLOW 3.3
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:N
References
CVE-2021-21781
LOW3.3

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

Published: 2021-08-18Modified: 2024-11-21
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS 3.xLOW 3.3
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References