The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2020-1749: Use ip6_dst_lookup_flow instead of ip6_dst_lookup (bsc#1165629).
- CVE-2020-14314: Fixed a potential negative array index in do_split() (bsc#1173798).
- CVE-2020-14356: Fixed a null pointer dereference in cgroupv2 subsystem which could have led to privilege escalation (bsc#1175213).
- CVE-2020-14331: Fixed a missing check in vgacon scrollback handling (bsc#1174205).
- CVE-2020-16166: Fixed a potential issue which could have allowed remote attackers to make observations that help to obtain sen
The SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
- CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567)
The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it.
This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).
- CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).
- CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq a
The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
- CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information fr
The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).
- CVE-2019-19338: There was an incomplete fix for an issue with Transactional Synchronisation Extensions in the KVM code (bsc#1158954).
- CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
- CVE-2019-14896: A heap overflow was found in the add
The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2019-14895: A heap-based buffer overflow was discovered in the Linux kernel in Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could have allowed the remote device to cause a denial of service (system crash) or possibly execute arbitrary code (bnc#1157158).
- CVE-2019-18660: The Linux kernel on powerpc allowed Information Exposure because the Spectre-RSB mitigation is not in place for all
The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
CVE-2018-12207: Untrusted virtual machines on Intel CPUs could exploit a race condition in the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional.
The Linux Kernel KVM hypervisor was adjusted to avoid page size changes in executable pages by splitting / merging huge pages into small pages as needed.
More information can be found on https://www.suse.com/support/kb/doc/?id=7023735
CVE-2019-11135: Aborting an asynchronous TS