Security update for the Linux Kernel (Live Patch 27 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_101 fixes several issues.
The following security issues were fixed:
- CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network (bsc#1136446).
- CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586).
- CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to fu
Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_85 fixes one issue.
The following security issue was fixed:
- CVE-2018-14734: drivers/infiniband/core/ucma.c allowed ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free) (bsc#1131390).
Security update for the Linux Kernel (Live Patch 22 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_80 fixes several issues.
The following security issues were fixed:
- CVE-2019-9213: Expand_downwards in mm/mmap.c lacked a check for the mmap minimum address, which made it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task (bsc#1128378).
- CVE-2019-7221: Fixed a user-after-free vulnerability in the KVM hypervisor related to the emulation of a preemption timer, allowing an guest user/process to crash the host kernel. (bsc#1124734).
- CVE-2019-6974: kvm_ioctl_create_device in virt/kvm/kvm_main.c mishandled
Security update for the Linux Kernel (Live Patch 25 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_95 fixes one issue.
The following security issue was fixed:
- CVE-2018-16884: A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time could make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user could cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out (bsc#1119947).
Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_85 fixes one issue.
The following security issue was fixed:
- CVE-2018-5391: Fixed a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may have caused a denial of service condition by sending specially crafted IP fragments. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size (bsc#1103098).
Security update for the Linux Kernel (Live Patch 18 for SLE 12 SP2)
This update for the Linux Kernel 4.4.114-92_64 fixes several issues.
The following security issues were fixed:
- CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bsc#1110233).
- CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash
Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_85 fixes several issues.
The following security issues were fixed:
- CVE-2018-5390: Prevent very expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every incoming TCP packet which can lead to a denial of service (bsc#1102682).
- CVE-2018-10938: Fixed an infinite loop in the cipso_v4_optptr() function leading to a denial-of-service via crafted network packets (bsc#1106191).
- CVE-2018-10902: It was found that the raw midi kernel driver did not protect against concurrent access which lead to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_st
Security update for the Linux Kernel (Live Patch 23 for SLE 12 SP2)
This update for the Linux Kernel 4.4.121-92_85 fixes several issues.
The following security issues were fixed:
- CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system (bsc#1099306).
- CVE-2018-10853: A flaw was found in kvm. In which certain instructions such as sgdt/sidt call segmented_write_std didn't propagate access correctly. As such, during userspace induced exception, the guest can incorrec
The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-5848: In the function wmi_set_ie(), the length validation code did
not handle unsigned integer overflow properly. As a result, a large value of
the 'ie_len' argument could have caused a buffer overflow (bnc#1097356)
- CVE-2018-1000204: Prevent infoleak caused by incorrect handling of the SG_IO
ioctl (bsc#1096728).
- CVE-2017-18249: The add_free_nid function did not properly track an allocated
nid, which allowed local users to cause a denial of service (race condition) or
possibly have