All errata/sisyphus/ALT-PU-2021-3305-2
ALT-PU-2021-3305-2

Package update kernel-image-un-def in branch sisyphus

Version5.14.20-alt1
Task#290059
Published2026-02-04
Max severityHIGH
Severity:

Closed issues (7)

BDU:2021-03902
HIGH7.0

Уязвимость функции sco_sock_sendmsg() подсистемы HCI ядра операционной системы Linux, позволяющая нарушителю вызвать аварийное завершение системы или повысить свои привилегии

Published: 2021-08-04Modified: 2024-09-16
CVSS 3.xHIGH 7.0
CVSS:3.x/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0MEDIUM 6.0
CVSS:2.0/AV:L/AC:H/Au:S/C:C/I:C/A:C
References
BDU:2021-04803
MEDIUM6.7

Уязвимость подсистемы Bluetooth ядра операционной системы Linux, позволяющая нарушителю вызвать аварийное завершение системы

Published: 2021-09-30Modified: 2023-07-18
CVSS 3.xMEDIUM 6.7
CVSS:3.x/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
References
BDU:2023-01273
HIGH7.0

Уязвимость функции ovl_write_iter() файловой системы overlayfs ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании или повысить свои привилегии

Published: 2023-03-17Modified: 2025-08-19
CVSS 3.xHIGH 7.0
CVSS:3.x/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0MEDIUM 6.0
CVSS:2.0/AV:L/AC:H/Au:S/C:C/I:C/A:C
References
CVE-2021-3640
HIGH7.0

A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.

Published: 2022-03-03Modified: 2024-11-21
CVSS 2.0MEDIUM 6.9
CVSS:2.0/AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS 3.xHIGH 7.0
CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2021-3752
HIGH7.1

A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Published: 2022-02-16Modified: 2024-11-21
CVSS 2.0HIGH 7.9
CVSS:2.0/AV:A/AC:M/Au:N/C:C/I:C/A:C
CVSS 3.xHIGH 7.1
CVSS:3.x/CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2021-47671
LOW3.3

In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_rx_err_msg(): fix memory leak in error path In es58x_rx_err_msg(), if can->do_set_mode() fails, the function directly returns without calling netif_rx(skb). This means that the skb previously allocated by alloc_can_err_skb() is not freed. In other terms, this is a memory leak. This patch simply removes the return statement in the error branch and let the function continue. Issue was found with GCC -fanalyzer, please follow the link below for details.

Published: 2025-04-17Modified: 2025-04-21
CVSS 3.xLOW 3.3
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
References
CVE-2023-1252
HIGH7.8

A use-after-free flaw was found in the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. This flaw allows a local user to crash or potentially escalate their privileges on the system. Only if patch 9a2544037600 ("ovl: fix use after free in struct ovl_aio_req") not applied yet, the kernel could be affected.

Published: 2023-03-23Modified: 2025-04-23
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References