Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3)
This update for the Linux Kernel 4.4.156-94_61 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 0 for SLE 12 SP4)
This update for the Linux Kernel 4.12.14-94_41 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 can 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 7 for SLE 12 SP3)
This update for the Linux Kernel 4.4.103-6_38 fixes one issue.
The following security issue was fixed:
- CVE-2018-5848: Fixed an unsigned integer overflow in wmi_set_ie. This could lead to a buffer overflow (bsc#1097356).
Security update for the Linux Kernel (Live Patch 9 for SLE 12 SP3)
This update for the Linux Kernel 4.4.114-94_14 fixes one issue.
The following security issue was fixed:
- CVE-2018-5391: Fixed a possible denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause 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 17 for SLE 12 SP3)
This update for the Linux Kernel 4.4.155-94_50 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 16 for SLE 12 SP3)
This update for the Linux Kernel 4.4.143-94_47 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 13 for SLE 12 SP3)
This update for the Linux Kernel 4.4.132-94_33 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
Security update for the Linux Kernel (Live Patch 11 for SLE 12 SP3)
This update for the Linux Kernel 4.4.126-94_22 fixes several issues.
The following security issue was fixed:
- CVE-2018-3665: System software utilizing Lazy FP state restore technique on systems using Intel Core-based microprocessors may potentially have allowed a local process to infer data from another process via a speculative execution side channel (bsc#1090338, bsc#1096740).
Security update for the Linux Kernel (Live Patch 11 for SLE 12 SP3)
This update for the Linux Kernel 4.4.126-94_22 fixes one issue.
The following security issue was fixed:
- CVE-2018-1000199: A bug in x86 debug register handling of ptrace() could lead to memory corruption, possibly a denial of service or privilege escalation (bsc#1090036).
The SUSE Linux Enterprise 12 SP3 kernel was updated to 4.4.126 to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-1091: In the flush_tmregs_to_thread function in arch/powerpc/kernel/ptrace.c, a guest kernel crash can be triggered from unprivileged userspace during a core dump on a POWER host due to a missing processor feature check and an erroneous use of transactional memory (TM) instructions in the core dump path, leading to a denial of service (bnc#1087231).
- CVE-2018-7740: The resv_map_release function in mm/hugetlb.c allowed local users to cause a denial of service (BUG) via a crafted applic