All errata/c7/ALT-PU-2017-2746-1
ALT-PU-2017-2746-1

Package update kernel-image-un-def in branch c7

Version4.9.66-alt0.M70C.1.1
Task#195825
Published2017-12-05
Max severityHIGH
Severity:

Closed issues (11)

BDU:2017-02266
HIGH7.9

Уязвимость протокола WPA2, связанная с ошибками управления криптографическими ключами (group key) и позволяющая получить доступ к зашифрованной информации, передаваемой по беспроводной сети

Published: 2017-10-18Modified: 2021-03-23
CVSS 3.xHIGH 7.9
CVSS:3.x/AV:A/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS 2.0HIGH 7.9
CVSS:2.0/AV:A/AC:M/Au:N/C:C/I:C/A:C
References
BDU:2017-02573
HIGH7.8

Уязвимость подсистемы KEYS ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании или оказать другое воздействие

Published: 2017-12-14Modified: 2024-05-16
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 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
References
BDU:2018-00073
HIGH7.8

Уязвимость функции sctp_do_peeloff ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании или оказать другое воздействие

Published: 2018-01-18Modified: 2024-05-16
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 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
References
BDU:2018-00089
HIGH7.8

Уязвимость реализации политики XFRM dump policy (net/xfrm/xfrm_user.c) ядра операционной системы Linux, позволяющая нарушителю повысить свои привилегии или вызвать отказ в обслуживании

Published: 2018-01-24Modified: 2024-12-03
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 2.0HIGH 7.2
CVSS:2.0/AV:L/AC:L/Au:N/C:C/I:C/A:C
References
BDU:2021-01426
HIGH7.0

Уязвимость функции touch_pmd() ядра операционных систем Linux, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

Published: 2021-03-21Modified: 2024-06-04
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
CVE-2017-1000405
HIGH7.0

The Linux Kernel versions 2.6.38 through 4.14 have a problematic use of pmd_mkdirty() in the touch_pmd() function inside the THP implementation. touch_pmd() can be reached by get_user_pages(). In such case, the pmd will become dirty. This scenario breaks the new can_follow_write_pmd()'s logic - pmd can become dirty without going through a COW cycle. This bug is not as severe as the original "Dirty cow" because an ext4 file (or any other regular file) cannot be mapped using THP. Nevertheless, it does allow us to overwrite read-only huge pages. For example, the zero huge page and sealed shmem files can be overwritten (since their mapping can be populated using THP). Note that after the first write page-fault to the zero page, it will be replaced with a new fresh (and zeroed) thp.

Published: 2017-11-30Modified: 2025-04-20
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-2017-12193
MEDIUM5.5

The assoc_array_insert_into_terminal_node function in lib/assoc_array.c in the Linux kernel before 4.13.11 mishandles node splitting, which allows local users to cause a denial of service (NULL pointer dereference and panic) via a crafted application, as demonstrated by the keyring key type, and key addition and link creation operations.

Published: 2017-11-22Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-13080
MEDIUM5.3

Wi-Fi Protected Access (WPA and WPA2) allows reinstallation of the Group Temporal Key (GTK) during the group key handshake, allowing an attacker within radio range to replay frames from access points to clients.

Published: 2017-10-17Modified: 2025-04-20
CVSS 2.0LOW 2.9
CVSS:2.0/AV:A/AC:M/Au:N/C:N/I:P/A:N
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
References
CVE-2017-15115
HIGH7.8

The sctp_do_peeloff function in net/sctp/socket.c in the Linux kernel before 4.14 does not check whether the intended netns is used in a peel-off action, which allows local users to cause a denial of service (use-after-free and system crash) or possibly have unspecified other impact via crafted system calls.

Published: 2017-11-15Modified: 2025-04-20
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-2017-15951
HIGH7.8

The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the "negative" state to avoid a race condition, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls.

Published: 2017-10-28Modified: 2025-04-20
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-2017-16939
HIGH7.8

The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.

Published: 2017-11-24Modified: 2025-04-20
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