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SUSE-SU-2021:1074-1

Опубликовано: 07 апр. 2021
Источник: suse-cvrf

Описание

Security update for the Linux Kernel (Live Patch 38 for SLE 12 SP3)

This update for the Linux Kernel 4.4.180-94_141 fixes several issues.

The following security issues were fixed:

  • CVE-2021-27365: Fixed an issue where data structures did not have appropriate length constraints or checks, and could exceed the PAGE_SIZE value (bsc#1183491).
  • CVE-2021-27363: Fixed a kernel pointer leak which could have been used to determine the address of the iscsi_transport structure (bsc#1183120).
  • CVE-2021-27364: Fixed an issue where an unprivileged user could craft Netlink messages (bsc#1182717).
  • CVE-2020-25645: Fixed an an issue in IPsec that caused traffic between two Geneve endpoints to be unencrypted (bsc#1177513).
  • CVE-2020-0429: Fixed a memory corruption due to a use after free which could have led to local escalation of privilege with System execution privileges needed (bsc#1176931).
  • CVE-2020-1749: Use ip6_dst_lookup_flow instead of ip6_dst_lookup (bsc#1165631).

Список пакетов

SUSE Linux Enterprise Server 12 SP3-LTSS
kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3
kgraft-patch-4_4_180-94_141-default-2-2.2

Ссылки

Описание

In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-152735806

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_141-default-2-2.2
Ссылки

Описание

A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending the data unencrypted. This would allow anyone in between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_141-default-2-2.2
Ссылки

Описание

A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_141-default-2-2.2
Ссылки

Описание

An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the pointer to an iscsi_transport struct in the kernel module's global variables.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_141-default-2-2.2
Ссылки

Описание

An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_141-default-2-2.2
Ссылки

Описание

An issue was discovered in the Linux kernel through 5.11.3. Certain iSCSI data structures do not have appropriate length constraints or checks, and can exceed the PAGE_SIZE value. An unprivileged user can send a Netlink message that is associated with iSCSI, and has a length up to the maximum length of a Netlink message.

Затронутые продукты
SUSE Linux Enterprise Server 12 SP3-LTSS:kgraft-patch-4_4_180-94_141-default-2-2.2
SUSE Linux Enterprise Server for SAP Applications 12 SP3:kgraft-patch-4_4_180-94_141-default-2-2.2
Ссылки
Уязвимость SUSE-SU-2021:1074-1