The SUSE Linux Enterprise 12 SP1 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 asynchron
The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2019-1125: Enable Spectre v1 swapgs mitigations (bsc#1139358).
- CVE-2018-20855: An issue was discovered in create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace (bsc#1143045).
- CVE-2019-14284: The drivers/block/floppy.c allowed a denial of service by setup_format_params division-by-zero. Two consecutive ioctls can trigger the bug: the first one should set the drive geometry with .sect and .rate values that ma
The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-5390 aka 'SegmentSmack': A remote attacker even with relatively low bandwidth could have caused lots of CPU usage
by triggering the worst case scenario during IP and/or TCP fragment reassembly (bsc#1102340)
- CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. (bnc#1135
The SUSE Linux Enterprise 12 SP1 kernel version 3.12.74 was updated to to
receive various security and bugfixes.
The following security bugs were fixed:
- 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 is possible to send a crafted sequence of SACKs which
will fragment the TCP retransmission queue. A remote attacker may be able to
further exploit the fragmented queue to cause an expensive linked-list walk
for subsequent SACKs received for that same TCP connection.
- CVE-2019-11479: It was
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
Four new speculative execution information leak issues have been identified in Intel CPUs. (bsc#1111331)
- CVE-2018-12126: Microarchitectural Store Buffer Data Sampling (MSBDS)
- CVE-2018-12127: Microarchitectural Fill Buffer Data Sampling (MFBDS)
- CVE-2018-12130: Microarchitectural Load Port Data Samling (MLPDS)
- CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)
This kernel update contains software mitigations for these issues, which also utilize CPU microcode updates shipped in parallel.
For more information o
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive a security fix.
The following security bug was 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 (bnc#1108399).
The SUSE Linux Enterprise 12 SP1 kernel was updated receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-14634: Prevent integer overflow in create_elf_tables that allowed a
local attacker to exploit this vulnerability via a SUID-root binary and obtain
full root privileges (bsc#1108912)
- CVE-2018-14617: Prevent NULL pointer dereference and panic in
hfsplus_lookup() when opening a file (that is purportedly a hard link) in an
hfs+ filesystem that has malformed catalog data, and is mounted read-only
without a metadata directory (bsc#1102870)
- CVE-2018-16276: Incorrect bounds checking in the yure
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-3620: Local attackers on baremetal 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. (bnc#1087081).
- 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 da
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-3665: Prevent disclosure of FPU registers (including XMM and AVX
registers) between processes. These registers might contain encryption keys
when doing SSE accelerated AES enc/decryption (bsc#1087086)
- 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 hand
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-3639: Information leaks using 'Memory Disambiguation' feature
in modern CPUs were mitigated, aka 'Spectre Variant 4' (bnc#1087082).
A new boot commandline option was introduced,
'spec_store_bypass_disable', which can have following values:
- auto: Kernel detects whether your CPU model contains an implementation
of Speculative Store Bypass and picks the most appropriate mitigation.
- on: disable Speculative Store Bypass
- off: enable Speculative Store Bypass
- prctl: Cont
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-1087: And an unprivileged KVM guest user could use this flaw to potentially escalate their privileges inside a guest. (bsc#1087088)
- CVE-2018-8897: An unprivileged system user could use incorrect set up interrupt stacks to crash the Linux kernel resulting in DoS issue. (bsc#1087088)
- CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions o
The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2018-1068: Fixed flaw in the implementation of 32-bit syscall interface
for bridging. This allowed a privileged user to arbitrarily write to a limited
range of kernel memory (bnc#1085107).
- CVE-2017-18221: The __munlock_pagevec function allowed local users to cause a
denial of service (NR_MLOCK accounting corruption) via crafted use of mlockall
and munlockall system calls (bnc#1084323).
- CVE-2018-1066: Prevent NULL pointer dereference in
fs/cifs/cifsencrypt.c:setup_ntlmv2_rsp() that allowed
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2017-5715: Systems with microprocessors utilizing speculative
execution and indirect branch prediction may allow unauthorized disclosure
of information to an attacker with local user access via a side-channel
analysis (bnc#1068032).
The previous fix using CPU Microcode has been complemented by building
the Linux Kernel with return trampolines aka 'retpolines'.
- CVE-2017-18079: drivers/input/serio/i8042.c allowed attackers to cause a
denial of service (NULL pointer dereference and sy
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
This update is only provided as a fix update for IBM Z platform.
- CVE-2017-5753 / 'Spectre Attack': IBM Z fixes were included but not enabled in the previous update. This update enables those fixes.
- CVE-2017-5715 / 'Spectre Attack': IBM Z fixes were already included in the previous update. A bugfix for the patches has been applied on top.
- CVE-2017-5754: The IBM Z architecture is not affected by the 'Meltdown' attack.
The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.
This update adds mitigations for various side channel attacks against
modern CPUs that could disclose content of otherwise unreadable memory
(bnc#1068032).
- CVE-2017-5753 / 'SpectreAttack': Local attackers on systems with modern
CPUs featuring deep instruction pipelining could use attacker
controllable speculative execution over code patterns in the Linux
Kernel to leak content from otherwise not readable memory in the same
address space, allowing retrieval of passwords, cryptographic keys
and other secrets.
This problem is mit
The SUSE Linux Enterprise 12 SP1 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2017-16939: The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages. (bnc#1069702)
- CVE-2017-1000405: mm, thp: do not dirty huge pages on read fault (bnc#1069496).
- CVE-2017-16649: The usbnet_generic_cdc_bind function in drivers/net/usb/cdc_ether.c in the Linux kernel allowed local users to
The SUSE Linux Enterprise 12 SP1 LTS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2017-15649: net/packet/af_packet.c in the Linux kernel allowed local users to gain privileges via crafted system calls that trigger mishandling of packet_fanout data structures, because of a race condition (involving fanout_add and packet_do_bind) that leads to a use-after-free, a different vulnerability than CVE-2017-6346 (bnc#1064388).
- CVE-2017-13080: Wi-Fi Protected Access (WPA and WPA2) allowed reinstallation of the Group Temporal Key (GTK) during the group key handshake, allowing an attacke
The SUSE Linux Enterprise 12 SP1 kernel was updated to receive the following security fixes:
- CVE-2017-1000251: The native Bluetooth stack in the Linux Kernel was
vulnerable to a stack overflow while processing L2CAP configuration
responses, resulting in a potential remote denial-of-service vulnerability
but no remote code execution due to use of CONFIG_CC_STACKPROTECTOR.
[bnc#1057389]
The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.74 to the following security updates:
- CVE-2017-1000111: fix race condition in net-packet code that could be
exploited to cause out-of-bounds memory access (bsc#1052365).
- CVE-2017-1000112: fix race condition in net-packet code that could have been
exploited by unprivileged users to gain root access. (bsc#1052311).
The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.74 to receive
the following security fix:
- CVE-2017-7533: Bug in inotify code allowed privilege escalation (bnc#1049483).