All errata/p9/ALT-PU-2020-2687-2
ALT-PU-2020-2687-2

Package update kernel-image-mp in branch p9

Version5.7.16-alt1
Task#256843
Published2026-02-04
Max severityHIGH
Severity:

Closed issues (34)

BDU:2020-03071
HIGH7.8

Уязвимость компонента drivers/tty/vt/keyboard.c ядра операционной системы Linux, позволяющая нарушителю выполнить произвольный код

Published: 2020-06-30Modified: 2024-05-31
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
BDU:2020-03435
MEDIUM5.5

Уязвимость функции usbtest_disconnect ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2020-07-23Modified: 2024-06-18
CVSS 3.xMEDIUM 5.5
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2020-05546
HIGH7.0

Уязвимость функции __split_huge_pmd (mm/huge_memory.c) ядра операционных систем Linux, позволяющая нарушителю выполнить произвольный код

Published: 2020-12-03Modified: 2024-09-13
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 6.6
CVSS:2.0/AV:L/AC:M/Au:S/C:C/I:C/A:C
References
BDU:2020-05547
HIGH7.0

Уязвимость функций expand_downwards и expand_upwards (mm/mmap.c) ядра операционных систем Linux, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2020-12-03Modified: 2025-01-29
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 6.6
CVSS:2.0/AV:L/AC:M/Au:S/C:C/I:C/A:C
References
BDU:2020-05552
LOW3.6

Уязвимость функции get_user_pages(), позволяющая нарушителю вызвать отказ в обслуживании

Published: 2020-12-03Modified: 2024-09-13
CVSS 3.xLOW 3.6
CVSS:3.x/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0LOW 3.0
CVSS:2.0/AV:L/AC:M/Au:S/C:P/I:P/A:N
References
BDU:2020-05900
MEDIUM5.9

Уязвимость процедуры ebitmap_netlbl_import ядра операционных систем Linux, связанная с разыменованием нулевого указателя, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2020-12-30Modified: 2022-10-17
CVSS 3.xMEDIUM 5.9
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0HIGH 7.1
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:C
References
BDU:2021-00285
MEDIUM6.7

Уязвимость файла fs/block_dev.c ядра операционной системы Linux, связанная с использованием памяти после ее освобождения, позволяющая нарушителю повысить свои привилегии или вызвать отказ в обслуживании

Published: 2021-01-26Modified: 2024-05-30
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:2021-00445
MEDIUM5.9

Уязвимость системы контроля доступа SELinux ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2021-02-02Modified: 2024-05-31
CVSS 3.xMEDIUM 5.9
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0HIGH 7.1
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:C
References
BDU:2021-01957
HIGH7.0

Уязвимость компонентов arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h и virt/kvm/kvm_main.c подсистемы виртуализации Kernel-based Virtual Machine (KVM) ядра операционных систем Linux, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Published: 2021-04-08Modified: 2021-09-20
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 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
References
BDU:2021-02305
LOW3.7

Уязвимость функции в drivers/char/random.c and kernel/time/timer.c ядра операционной системы Linux, позволяющая нарушителю получить конфиденциальную информацию

Published: 2021-05-05Modified: 2024-06-05
CVSS 3.xLOW 3.7
CVSS:3.x/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:N
References
BDU:2021-02589
HIGH7.8

Уязвимость функции tss_invalidate_io_bitmap ядра операционной системы Linux, позволяющая нарушителю повысить свои привилегии

Published: 2021-05-19Modified: 2022-10-17
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
BDU:2021-03188
HIGH7.1

Уязвимость компонента fs/nfsd/vfs.c ядра операционной системы Linux, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Published: 2021-06-23Modified: 2025-01-29
CVSS 3.xHIGH 7.1
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS 2.0MEDIUM 6.2
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:N
References
BDU:2021-03189
HIGH7.8

Уязвимость подсистемы cgroupv2 ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании или повысить свои привилегии

Published: 2021-06-23Modified: 2024-09-13
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
BDU:2021-04835
MEDIUM6.7

Уязвимость компонента drivers/gpu/drm/nouveau/nouveau_sgdma.c ядра операционной системы Linux , связанная с использованием памяти после её освобождения, позволяющая нарушителю выполнить произвольный код с root привилегиями

Published: 2021-10-05Modified: 2024-06-03
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:2021-06410
HIGH7.8

Уязвимость компонента mm/mremap.c ядра операционной системы Linux, связанная с выходом операции за допустимые границы буфера данных, позволяющая нарушителю повысить свои привилегии в системе

Published: 2021-12-28Modified: 2024-09-16
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 6.9
CVSS:2.0/AV:L/AC:M/Au:N/C:C/I:C/A:C
References
BDU:2022-05426
MEDIUM4.4

Уязвимость подсистемы eBPF ядра операционной системы Linux, позволяющая нарушителю раскрыть защищаемую информацию

Published: 2022-08-31Modified: 2024-11-07
CVSS 3.xMEDIUM 4.4
CVSS:3.x/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:N/A:N
References
BDU:2023-01798
MEDIUM4.7

Уязвимость виртуальной файловой системы /proc ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2023-04-03Modified: 2024-01-09
CVSS 3.xMEDIUM 4.7
CVSS:3.x/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0LOW 3.8
CVSS:2.0/AV:L/AC:H/Au:S/C:N/I:N/A:C
References
CVE-2020-10711
MEDIUM5.9

A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.

Published: 2020-05-22Modified: 2024-11-21
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2020-10757
HIGH7.8

A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system.

Published: 2020-06-09Modified: 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 7.8
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2020-13974
HIGH7.8

An issue was discovered in the Linux kernel 4.4 through 5.7.1. drivers/tty/vt/keyboard.c has an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. NOTE: Members in the community argue that the integer overflow does not lead to a security issue in this case.

Published: 2020-06-09Modified: 2024-11-21
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
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
CVE-2020-14356
HIGH7.8

A flaw null pointer dereference in the Linux kernel cgroupv2 subsystem in versions before 5.7.10 was found in the way when reboot the system. A local user could use this flaw to crash the system or escalate their privileges on the system.

Published: 2020-08-19Modified: 2024-11-21
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
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
CVE-2020-15393
MEDIUM5.5

In the Linux kernel 4.4 through 5.7.6, usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770.

Published: 2020-06-29Modified: 2024-11-21
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2020-15436
MEDIUM6.7

Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field.

Published: 2020-11-23Modified: 2024-11-21
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xMEDIUM 6.7
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
CVE-2020-15780
MEDIUM6.7

An issue was discovered in drivers/acpi/acpi_configfs.c in the Linux kernel before 5.7.7. Injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30.

Published: 2020-07-15Modified: 2024-11-21
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xMEDIUM 6.7
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
CVE-2020-15852
HIGH7.8

An issue was discovered in the Linux kernel 5.5 through 5.7.9, as used in Xen through 4.13.x for x86 PV guests. An attacker may be granted the I/O port permissions of an unrelated task. This occurs because tss_invalidate_io_bitmap mishandling causes a loss of synchronization between the I/O bitmaps of TSS and Xen, aka CID-cadfad870154.

Published: 2020-07-20Modified: 2024-11-21
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P
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
CVE-2020-16166
LOW3.7

The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c.

Published: 2020-07-30Modified: 2024-11-21
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS 3.xLOW 3.7
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
CVE-2020-24394
HIGH7.1

In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.

Published: 2020-08-19Modified: 2024-11-21
CVSS 2.0LOW 3.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS 3.xHIGH 7.1
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
References
CVE-2020-29368
HIGH7.0

An issue was discovered in __split_huge_pmd in mm/huge_memory.c in the Linux kernel before 5.7.5. The copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check, aka CID-c444eb564fb1.

Published: 2020-11-28Modified: 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-2020-29369
HIGH7.0

An issue was discovered in mm/mmap.c in the Linux kernel before 5.7.11. There is a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe.

Published: 2020-11-28Modified: 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-2020-29374
LOW3.6

An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.

Published: 2020-11-28Modified: 2024-11-21
CVSS 2.0LOW 3.3
CVSS:2.0/AV:L/AC:M/Au:N/C:P/I:P/A:N
CVSS 3.xLOW 3.6
CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
References
CVE-2020-36313
HIGH7.8

An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after a deletion, aka CID-0774a964ef56. This affects arch/s390/kvm/kvm-s390.c, include/linux/kvm_host.h, and virt/kvm/kvm_main.c.

Published: 2021-04-07Modified: 2024-11-21
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P
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
CVE-2021-20292
MEDIUM6.7

There is a flaw reported in the Linux kernel in versions before 5.9 in drivers/gpu/drm/nouveau/nouveau_sgdma.c in nouveau_sgdma_create_ttm in Nouveau DRM subsystem. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker with a local account with a root privilege, can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.

Published: 2021-05-28Modified: 2024-11-21
CVSS 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS 3.xMEDIUM 6.7
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
CVE-2021-4159
MEDIUM4.4

A vulnerability was found in the Linux kernel's EBPF verifier when handling internal data structures. Internal memory locations could be returned to userspace. A local attacker with the permissions to insert eBPF code to the kernel can use this to leak internal kernel memory details defeating some of the exploit mitigations in place for the kernel.

Published: 2022-08-24Modified: 2024-11-21
CVSS 3.xMEDIUM 4.4
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
References