Описание
Security update for the Linux Kernel (Live Patch 37 for SLE 12 SP3)
This update for the Linux Kernel 4.4.180-94_138 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).
Список пакетов
SUSE Linux Enterprise Live Patching 12 SP4
SUSE Linux Enterprise Live Patching 12 SP5
SUSE Linux Enterprise Live Patching 15
SUSE Linux Enterprise Live Patching 15 SP1
SUSE Linux Enterprise Live Patching 15 SP2
SUSE Linux Enterprise Server 12 SP3-LTSS
SUSE Linux Enterprise Server for SAP Applications 12 SP3
Ссылки
- Link for SUSE-SU-2021:1075-1
- E-Mail link for SUSE-SU-2021:1075-1
- SUSE Security Ratings
- SUSE Bug 1182717
- SUSE Bug 1183120
- SUSE Bug 1183491
- SUSE CVE CVE-2021-27363 page
- SUSE CVE CVE-2021-27364 page
- SUSE CVE CVE-2021-27365 page
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
Ссылки
- CVE-2021-27363
- SUSE Bug 1182716
- SUSE Bug 1182717
- SUSE Bug 1183120
- SUSE Bug 1200084
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
Ссылки
- CVE-2021-27364
- SUSE Bug 1182715
- SUSE Bug 1182716
- SUSE Bug 1182717
- SUSE Bug 1200084
- SUSE Bug 1214268
- SUSE Bug 1218966
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
Ссылки
- CVE-2021-27365
- SUSE Bug 1182712
- SUSE Bug 1182715
- SUSE Bug 1183491
- SUSE Bug 1200084
- SUSE Bug 1214268
- SUSE Bug 1218966