Integer overflow in the mem_check_range function in drivers/infiniband/sw/rxe/rxe_mr.c in the Linux kernel before 4.9.10 allows local users to cause a denial of service (memory corruption), obtain sensitive information from kernel memory, or possibly have unspecified other impact via a write or read request involving the "RDMA protocol over infiniband" (aka Soft RoCE) technology.

The SUSE Linux Enterprise 12 SP2 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 on this set of information leaks, check out https://www.suse.com/support/kb/doc/?id=7023736

The following security bugs were fixed: CVE-2018-1128: It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay attack. Any attacker having access to ceph cluster network who is able to sniff packets on network could use this vulnerability to authenticate with ceph service and perform actions allowed by ceph service. (bnc#1096748).

CVE-2018-1129: A flaw was found in the way signature calculation was handled by cephx authentication protocol. An attacker having access to ceph cluster network who is able to alter the message payload was able to bypass signature checks done by cephx protocol. (bnc#1096748).

CVE-2016-8636: Integer overflow in the mem_check_range function in drivers/infiniband/sw/rxe/rxe_mr.c allowed local users to cause a denial of service (memory corruption), obtain sensitive information or possibly have unspecified other impact via a write or read request involving the 'RDMA protocol over infiniband' (aka Soft RoCE) technology (bnc#1024908).

CVE-2017-18174: In the amd_gpio_remove function in drivers/pinctrl/pinctrl-amd.c calls the pinctrl_unregister function, leading to a double free (bnc#1080533).

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-2018-1120: By mmap()ing a FUSE-backed file onto a process's memory containing command line arguments (or environment strings), an attacker can cause utilities from psutils or procps (such as ps, w) or any other program which made a read() call to the /proc/<pid>/cmdline (or /proc/<pid>/environ) files to block indefinitely (denial of service) or for some controlled time (as a synchronization primitive for other attacks) (bnc#1093158). </pid></pid>

CVE-2019-11486: The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c has multiple race conditions (bnc#1133188).

CVE-2019-3882: A flaw was found in the vfio interface implementation that permits violation of the user's locked memory limit. If a device is bound to a vfio driver, such as vfio-pci, and the local attacker is administratively granted ownership of the device, it may cause a system memory exhaustion and thus a denial of service (DoS) (bsc#1131427).

CVE-2018-19407: The vcpu_scan_ioapic function in arch/x86/kvm/x86.c allowed local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized (bnc#1116841).

CVE-2017-17741: The KVM implementation allowed attackers to obtain potentially sensitive information from kernel memory, aka a write_mmio stack-based out-of-bounds read, related to arch/x86/kvm/x86.c and include/trace/events/kvm.h (bnc#1073311).

CVE-2019-9503, CVE-2019-8564: Multiple brcmfmac frame validation bypasses have been fixed (bnc#1132828, bnc#1132673).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - drivers/gpu/msm/kgsl.c in the MSM graphics driver (aka     GPU driver) for the Linux kernel 3.x, as used in     Qualcomm Innovation Center (QuIC) Android contributions     for MSM devices and other products, mishandles the     KGSL_MEMFLAGS_GPUREADONLY flag, which allows attackers     to gain privileges by leveraging accidental read-write     mappings, aka Qualcomm internal bug     CR988993.(CVE-2016-2067i1/4%0

  - Integer overflow in the mem_check_range function in     drivers/infiniband/sw/rxe/rxe_mr.c in the Linux kernel     before 4.9.10 allows local users to cause a denial of     service (memory corruption), obtain sensitive     information from kernel memory, or possibly have     unspecified other impact via a write or read request     involving the 'RDMA protocol over infiniband' (aka Soft     RoCE) technology.(CVE-2016-8636i1/4%0

  - Heap-based buffer overflow in the     logi_dj_ll_raw_request function in     drivers/hid/hid-logitech-dj.c in the Linux kernel     before 3.16.2 allows physically proximate attackers to     cause a denial of service (system crash) or possibly     execute arbitrary code via a crafted device that     specifies a large report size for an LED     report.(CVE-2014-3183i1/4%0

  - The futex_requeue function in kernel/futex.c in the     Linux kernel, before 4.14.15, might allow attackers to     cause a denial of service (integer overflow) or     possibly have unspecified other impacts by triggering a     negative wake or requeue value. Due to the nature of     the flaw, privilege escalation cannot be fully ruled     out, although we believe it is     unlikely.(CVE-2018-6927i1/4%0

  - The hub_activate function in drivers/usb/core/hub.c in     the Linux kernel before 4.3.5 does not properly     maintain a hub-interface data structure, which allows     physically proximate attackers to cause a denial of     service (invalid memory access and system crash) or     possibly have unspecified other impact by unplugging a     USB hub device.(CVE-2015-8816i1/4%0

  - It was found that the blk_rq_map_user_iov() function in     the Linux kernel's block device implementation did not     properly restrict the type of iterator, which could     allow a local attacker to read or write to arbitrary     kernel memory locations or cause a denial of service     (use-after-free) by leveraging write access to a     /dev/sg device.(CVE-2016-9576i1/4%0

  - A security flaw was found in the Linux kernel's     networking subsystem that destroying the network     interface with huge number of ipv4 addresses assigned     keeps 'rtnl_lock' spinlock for a very long time (up to     hour). This blocks many network-related operations,     including creation of new incoming ssh connections.The     problem is especially important for containers, as the     container owner has enough permissions to trigger this     and block a network access on a whole host, outside the     container.(CVE-2016-3156i1/4%0

  - The edge_bulk_in_callback function in     drivers/usb/serial/io_ti.c in the Linux kernel allows     local users to obtain sensitive information (in the     dmesg ringbuffer and syslog) from uninitialized kernel     memory by using a crafted USB device (posing as an     io_ti USB serial device) to trigger an integer     underflow.(CVE-2017-8924i1/4%0

  - The IPv4 implementation in the Linux kernel before     3.18.8 does not properly consider the length of the     Read-Copy Update (RCU) grace period for redirecting     lookups in the absence of caching, which allows remote     attackers to cause a denial of service (memory     consumption or system crash) via a flood of     packets.(CVE-2015-1465i1/4%0

  - A symlink size validation was missing in Linux kernels     built with UDF file system (CONFIG_UDF_FS) support,     allowing the corruption of kernel memory. An attacker     able to mount a corrupted/malicious UDF file system     image could cause the kernel to crash.(CVE-2014-9728i1/4%0

  - net/ipv6/ip6_output.c in the Linux kernel through     3.11.4 does not properly determine the need for UDP     Fragmentation Offload (UFO) processing of small packets     after the UFO queueing of a large packet, which allows     remote attackers to cause a denial of service (memory     corruption and system crash) or possibly have     unspecified other impact via network traffic that     triggers a large response packet.(CVE-2013-4387i1/4%0

  - It was found that nfsd is missing permissions check     when setting ACL on files, this may allow a local users     to gain access to any file by setting a crafted     ACL.(CVE-2016-1237i1/4%0

  - In the Linux kernel before 4.13.5, a local user could     create keyrings for other users via keyctl commands,     setting unwanted defaults or causing a denial of     service.(CVE-2017-18270i1/4%0

  - An issue was discovered in the Linux kernel where an     integer overflow in kernel/time/posix-timers.c in the     POSIX timer code is caused by the way the overrun     accounting works. Depending on interval and expiry time     values, the overrun can be larger than INT_MAX, but the     accounting is int based. This basically makes the     accounting values, which are visible to user space via     timer_getoverrun(2) and siginfo::si_overrun,     random.(CVE-2018-12896i1/4%0

  - Since Linux kernel version 3.2, the mremap() syscall     performs TLB flushes after dropping pagetable locks. If     a syscall such as ftruncate() removes entries from the     pagetables of a task that is in the middle of mremap(),     a stale TLB entry can remain for a short time that     permits access to a physical page after it has been     released back to the page allocator and reused. This is     fixed in the following kernel versions: 4.9.135,     4.14.78, 4.18.16, 4.19.(CVE-2018-18281i1/4%0

  - The netfilter subsystem in the Linux kernel through     4.15.7 mishandles the case of a rule blob that contains     a jump but lacks a user-defined chain, which allows     local users to cause a denial of service (NULL pointer     dereference) by leveraging the CAP_NET_RAW or     CAP_NET_ADMIN capability, related to arpt_do_table in     net/ipv4/netfilter/arp_tables.c, ipt_do_table in     net/ipv4/netfilter/ip_tables.c, and ip6t_do_table in     net/ipv6/netfilter/ip6_tables.c.(CVE-2018-1065i1/4%0

  - The use of a kzalloc with an integer multiplication     allowed an integer overflow condition to be reached in     vfio_pci_intrs.c. This combined with CVE-2016-9083 may     allow an attacker to craft an attack and use     unallocated memory, potentially crashing the     machine.(CVE-2016-9084i1/4%0

  - The acm_probe function in drivers/usb/class/cdc-acm.c     in the Linux kernel before 4.5.1 allows physically     proximate attackers to cause a denial of service (NULL     pointer dereference and system crash) via a USB device     without both a control and a data endpoint     descriptor.(CVE-2016-3138i1/4%0

  - It was discovered that root can gain direct access to     an internal keyring, such as '.dns_resolver' in RHEL-7     or '.builtin_trusted_keys' upstream, by joining it as     its session keyring. This allows root to bypass module     signature verification by adding a new public key of     its own devising to the keyring.(CVE-2016-9604i1/4%0

  - An information leak flaw was found in the Linux     kernel's IEEE 802.11 wireless networking     implementation. When software encryption was used, a     remote attacker could use this flaw to leak up to 8     bytes of plaintext.(CVE-2014-8709i1/4%0

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3361-1 advisory.

    USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the     corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04     LTS. Please note that this update changes the Linux HWE kernel to the 4.10 based kernel from Ubuntu 17.04,     superseding the 4.8 based HWE kernel from Ubuntu 16.10.

    Ben Harris discovered that the Linux kernel would strip extended privilege attributes of files when     performing a failed unprivileged system call. A local attacker could use this to cause a denial of     service. (CVE-2015-1350)

    Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel did not properly validate meta     block groups. An attacker with physical access could use this to specially craft an ext4 image that causes     a denial of service (system crash). (CVE-2016-10208)

    Peter Pi discovered that the colormap handling for frame buffer devices in the Linux kernel contained an     integer overflow. A local attacker could use this to disclose sensitive information (kernel memory).
    (CVE-2016-8405)

    It was discovered that an integer overflow existed in the InfiniBand RDMA over ethernet (RXE) transport     implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2016-8636)

    Vlad Tsyrklevich discovered an integer overflow vulnerability in the VFIO PCI driver for the Linux kernel.
    A local attacker with access to a vfio PCI device file could use this to cause a denial of service (system     crash) or possibly execute arbitrary code. (CVE-2016-9083, CVE-2016-9084)

    CAI Qian discovered that the sysctl implementation in the Linux kernel did not properly perform reference     counting in some situations. An unprivileged attacker could use this to cause a denial of service (system     hang). (CVE-2016-9191)

    It was discovered that the keyring implementation in the Linux kernel in some situations did not prevent     special internal keyrings from being joined by userspace keyrings. A privileged local attacker could use     this to bypass module verification. (CVE-2016-9604)

    Dmitry Vyukov, Andrey Konovalov, Florian Westphal, and Eric Dumazet discovered that the netfiler subsystem     in the Linux kernel mishandled IPv6 packet reassembly. A local user could use this to cause a denial of     service (system crash) or possibly execute arbitrary code. (CVE-2016-9755)

    Andy Lutomirski and Willy Tarreau discovered that the KVM implementation in the Linux kernel did not     properly emulate instructions on the SS segment register. A local attacker in a guest virtual machine     could use this to cause a denial of service (guest OS crash) or possibly gain administrative privileges in     the guest OS. (CVE-2017-2583)

    Dmitry Vyukov discovered that the KVM implementation in the Linux kernel improperly emulated certain     instructions. A local attacker could use this to obtain sensitive information (kernel memory).
    (CVE-2017-2584)

    Dmitry Vyukov discovered that KVM implementation in the Linux kernel improperly emulated the VMXON     instruction. A local attacker in a guest OS could use this to cause a denial of service (memory     consumption) in the host OS. (CVE-2017-2596)

    It was discovered that SELinux in the Linux kernel did not properly handle empty writes to /proc/pid/attr.
    A local attacker could use this to cause a denial of service (system crash). (CVE-2017-2618)

    Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux     kernel. A local privileged attacker could use this to cause a denial of service (system crash).
    (CVE-2017-2671)

    It was discovered that the freelist-randomization in the SLAB memory allocator allowed duplicate freelist     entries. A local attacker could use this to cause a denial of service (system crash). (CVE-2017-5546)

    It was discovered that the KLSI KL5KUSB105 serial-to-USB device driver in the Linux kernel did not     properly initialize memory related to logging. A local attacker could use this to expose sensitive     information (kernel memory). (CVE-2017-5549)

    It was discovered that a fencepost error existed in the pipe_advance() function in the Linux kernel. A     local attacker could use this to expose sensitive information (kernel memory). (CVE-2017-5550)

    It was discovered that the Linux kernel did not clear the setgid bit during a setxattr call on a tmpfs     filesystem. A local attacker could use this to gain elevated group privileges. (CVE-2017-5551)

    Murray McAllister discovered that an integer overflow existed in the VideoCore DRM driver of the Linux     kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute     arbitrary code. (CVE-2017-5576)

    Gareth Evans discovered that the shm IPC subsystem in the Linux kernel did not properly restrict mapping     page zero. A local privileged attacker could use this to execute arbitrary code. (CVE-2017-5669)

    Andrey Konovalov discovered an out-of-bounds access in the IPv6 Generic Routing Encapsulation (GRE)     tunneling implementation in the Linux kernel. An attacker could use this to possibly expose sensitive     information. (CVE-2017-5897)

    Andrey Konovalov discovered that the IPv4 implementation in the Linux kernel did not properly handle     invalid IP options in some situations. An attacker could use this to cause a denial of service or possibly     execute arbitrary code. (CVE-2017-5970)

    Di Shen discovered that a race condition existed in the perf subsystem of the Linux kernel. A local     attacker could use this to cause a denial of service or possibly gain administrative privileges.
    (CVE-2017-6001)

    Dmitry Vyukov discovered that the Linux kernel did not properly handle TCP packets with the URG flag. A     remote attacker could use this to cause a denial of service. (CVE-2017-6214)

    Andrey Konovalov discovered that the LLC subsytem in the Linux kernel did not properly set up a destructor     in certain situations. A local attacker could use this to cause a denial of service (system crash).
    (CVE-2017-6345)

    It was discovered that a race condition existed in the AF_PACKET handling code in the Linux kernel. A     local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary     code. (CVE-2017-6346)

    Andrey Konovalov discovered that the IP layer in the Linux kernel made improper assumptions about internal     data layout when performing checksums. A local attacker could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2017-6347)

    Dmitry Vyukov discovered race conditions in the Infrared (IrDA) subsystem in the Linux kernel. A local     attacker could use this to cause a denial of service (deadlock). (CVE-2017-6348)

    Dmitry Vyukov discovered that the generic SCSI (sg) subsystem in the Linux kernel contained a stack-based     buffer overflow. A local attacker with access to an sg device could use this to cause a denial of service     (system crash) or possibly execute arbitrary code. (CVE-2017-7187)

    It was discovered that a NULL pointer dereference existed in the Direct Rendering Manager (DRM) driver for     VMWare devices in the Linux kernel. A local attacker could use this to cause a denial of service (system     crash). (CVE-2017-7261)

    It was discovered that the USB Cypress HID drivers for the Linux kernel did not properly validate reported     information from the device. An attacker with physical access could use this to expose sensitive     information (kernel memory). (CVE-2017-7273)

    Eric Biggers discovered a memory leak in the keyring implementation in the Linux kernel. A local attacker     could use this to cause a denial of service (memory consumption). (CVE-2017-7472)

    It was discovered that an information leak existed in the set_mempolicy and mbind compat syscalls in the     Linux kernel. A local attacker could use this to expose sensitive information (kernel memory).
    (CVE-2017-7616)

    Sabrina Dubroca discovered that the asynchronous cryptographic hash (ahash) implementation in the Linux     kernel did not properly handle a full request queue. A local attacker could use this to cause a denial of     service (infinite recursion). (CVE-2017-7618)

    Tuomas Haanp and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux     kernel did not properly handle certain long RPC replies. A remote attacker could use this to cause a     denial of service (system crash). (CVE-2017-7645)

    Tommi Rantala and Brad Spengler discovered that the memory manager in the Linux kernel did not properly     enforce the CONFIG_STRICT_DEVMEM protection mechanism. A local attacker with access to /dev/mem could use     this to expose sensitive information or possibly execute arbitrary code. (CVE-2017-7889)

    Tuomas Haanp and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux     kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests     that cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2017-7895)

    It was discovered that an integer underflow existed in the Edgeport USB Serial Converter device driver of     the Linux kernel. An attacker with physical access could use this to expose sensitive information (kernel     memory). (CVE-2017-8924)

    It was discovered that the USB ZyXEL omni.net LCD PLUS driver in the Linux kernel did not properly perform     reference counting. A local attacker could use this to cause a denial of service (tty exhaustion).
    (CVE-2017-8925)

    Jann Horn discovered that bpf in Linux kernel does not restrict the output of the print_bpf_insn function.
    A local attacker could use this to obtain sensitive address information. (CVE-2017-9150)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
125282	SUSE SLES12 Security Update : kernel (SUSE-SU-2019:1287-1) (MDSUM/RIDL) (MFBDS/RIDL/ZombieLoad) (MLPDS/RIDL) (MSBDS/Fallout)	Nessus	SuSE Local Security Checks	critical
124975	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1522)	Nessus	Huawei Local Security Checks	high
101929	Ubuntu 16.04 LTS : Linux kernel (HWE) vulnerabilities (USN-3361-1)	Nessus	Ubuntu Local Security Checks	critical

Detections

Analytics

CVE-2016-8636

high

Tenable Plugins

critical

high

critical