All errata/sisyphus/ALT-PU-2023-1566-1
ALT-PU-2023-1566-1

Package update kernel-image-centos in branch sisyphus

Version5.14.0.295-alt1.el9
Task#317946
Published2023-04-03
Max severityHIGH
Severity:

Closed issues (6)

BDU:2022-07509
HIGH8.8

Уязвимость подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционной системы Linux, позволяющая нарушителю получить несанкционированный доступ и повысить свои привилегии

Published: 2022-12-29Modified: 2025-08-19
CVSS 3.xHIGH 8.8
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:C/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:2023-00945
MEDIUM6.5

Уязвимость драйвера Bluetooth ядра операционной системы Linux, позволяющая нарушителю получить доступ к защищаемой информации

Published: 2023-03-03Modified: 2025-08-19
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 6.1
CVSS:2.0/AV:A/AC:L/Au:N/C:C/I:N/A:N
References
BDU:2023-01797
HIGH7.8

Уязвимость функции tun_free_netdev() виртуальных сетевых драйверов TUN/TAP ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании или повысить свои привилегии

Published: 2023-04-03Modified: 2025-08-19
CVSS 3.xHIGH 7.8
CVSS:3.x/AV:L/AC:L/PR:L/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
CVE-2022-2196
HIGH8.8

A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or past commit 2e7eab81425a

Published: 2023-01-09Modified: 2025-02-13
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
References
CVE-2022-42895
MEDIUM6.5

There is an infoleak vulnerability in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_parse_conf_req function which can be used to leak kernel pointers remotely. We recommend upgrading past commit  https://github.com/torvalds/linux/commit/b1a2cd50c0357f243b7435a732b4e62ba3157a2e https://www.google.com/url

Published: 2022-11-23Modified: 2024-11-21
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
References
CVE-2022-4744
HIGH7.8

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

Published: 2023-03-30Modified: 2025-02-14
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