arch/s390/kernel/ptrace.c in the Linux kernel before 3.15.8 on the s390 platform does not properly restrict address-space control operations in PTRACE_POKEUSR_AREA requests, which allows local users to obtain read and write access to kernel memory locations, and consequently gain privileges, via a crafted application that makes a ptrace system call.

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 :

  - The kernel package contains the Linux kernel (vmlinuz),     the core of any Linux operating system. The kernel     handles the basic functions of the operating system:
    memory allocation, process allocation, device input and     output, etc.Security Fix(es):A flaw named FragmentSmack     was found in the way the Linux kernel handled     reassembly of fragmented IPv4 and IPv6 packets. A     remote attacker could use this flaw to trigger time and     calculation expensive fragment reassembly algorithm by     sending specially crafted packets which could lead to a     CPU saturation and hence a denial of service on the     system.(CVE-2018-5391)Multiple out-of-bounds write     flaws were found in the way the Cherry Cymotion     keyboard driver, KYE/Genius device drivers, Logitech     device drivers, Monterey Genius KB29E keyboard driver,     Petalynx Maxter remote control driver, and Sunplus     wireless desktop driver handled HID reports with an     invalid report descriptor size. An attacker with     physical access to the system could use either of these     flaws to write data past an allocated memory     buffer.(CVE-2014-3184)The __get_data_block function in     fs/f2fs/data.c in the Linux kernel before 4.11 allows     local users to cause a denial of service (integer     overflow and loop) via crafted use of the open and     fallocate system calls with an FS_IOC_FIEMAP     ioctl.(CVE-2017-18257)netetfilter/xt_osf.c in the Linux     kernel through 4.14.4 does not require the     CAP_NET_ADMIN capability for add_callback and     remove_callback operations. This allows local users to     bypass intended access restrictions because the     xt_osf_fingers data structure is shared across all     network namespaces.(CVE-2017-17450)A denial of service     flaw was discovered in the Linux kernel, where a race     condition caused a NULL pointer dereference in the RDS     socket-creation code. A local attacker could use this     flaw to create a situation in which a NULL pointer     crashed the kernel.(CVE-2015-7990)An issue was     discovered in the Linux kernel before 4.19.9. The USB     subsystem mishandles size checks during the reading of     an extra descriptor, related to
    __usb_get_extra_descriptor in     drivers/usb/core/usb.c.(CVE-2018-20169)mm/memory.c in     the Linux kernel before 4.1.4 mishandles anonymous     pages, which allows local users to gain privileges or     cause a denial of service (page tainting) via a crafted     application that triggers writing to page     zero.(CVE-2015-3288)The ovl_setattr function in     fs/overlayfs/inode.c in the Linux kernel through 4.3.3     attempts to merge distinct setattr operations, which     allows local users to bypass intended access     restrictions and modify the attributes of arbitrary     overlay files via a crafted     application.(CVE-2015-8660)A flaw was found in the     Linux kernel where a local user with a shell account     can abuse the userfaultfd syscall when using hugetlbfs.
    A missing size check in hugetlb_mcopy_atomic_pte could     create an invalid inode variable, leading to a kernel     panic.(CVE-2017-15128)An integer overflow flaw was     found in the way the lzo1x_decompress_safe() function     of the Linux kernel's LZO implementation processed     Literal Runs. A local attacker could, in extremely rare     cases, use this flaw to crash the system or,     potentially, escalate their privileges on the     system.(CVE-2014-4608)It was found that Linux kernel's     ptrace subsystem did not properly sanitize the     address-space-control bits when the program-status word     (PSW) was being set. On IBM S/390 systems, a local,     unprivileged user could use this flaw to set     address-space-control bits to the kernel space, and     thus gain read and write access to kernel     memory.(CVE-2014-3534)A use-after-free flaw was found     in the Linux kernel's file system encryption     implementation. A local user could revoke keyring keys     being used for ext4, f2fs, or ubifs encryption, causing     a denial of service on the system.(CVE-2017-7374)The     usbip_recv_xbuff function in     drivers/usb/usbip/usbip_common.c in the Linux kernel     before 4.5.3 allows remote attackers to cause a denial     of service (out-of-bounds write) or possibly have     unspecified other impact via a crafted length value in     a USB/IP packet.(CVE-2016-3955)A flaw was found in the     patches used to fix the 'dirtycow' vulnerability     (CVE-2016-5195). An attacker, able to run local code,     can exploit a race condition in transparent huge pages     to modify usually read-only huge     pages.(CVE-2017-1000405)The aio_mount function in     fs/aio.c in the Linux kernel does not properly restrict     execute access, which makes it easier for local users     to bypass intended SELinux W^X policy     restrictions.(CVE-2016-10044)The Serial Attached SCSI     (SAS) implementation in the Linux kernel mishandles a     mutex within libsas. This allows local users to cause a     denial of service (deadlock) by triggering certain     error-handling code.(CVE-2017-18232)A use-after-free     vulnerability was found in tcp_xmit_retransmit_queue     and other tcp_* functions. This condition could allow     an attacker to send an incorrect selective     acknowledgment to existing connections, possibly     resetting a connection.(CVE-2016-6828)The instruction     decoder in arch/x86/kvm/emulate.c in the KVM subsystem     in the Linux kernel before 3.18-rc2 does not properly     handle invalid instructions, which allows guest OS     users to cause a denial of service (NULL pointer     dereference and host OS crash) via a crafted     application that triggers (1) an improperly fetched     instruction or (2) an instruction that occupies too     many bytes. NOTE: this vulnerability exists because of     an incomplete fix for CVE-2014-8480.(CVE-2014-8481)The     snd_compress_check_input function in     sound/core/compress_offload.c in the ALSA subsystem in     the Linux kernel before 3.17 does not properly check     for an integer overflow, which allows local users to     cause a denial of service (insufficient memory     allocation) or possibly have unspecified other impact     via a crafted SNDRV_COMPRESS_SET_PARAMS ioctl     call.(CVE-2014-9904)The resv_map_release function in     mm/hugetlb.c in the Linux kernel, through 4.15.7,     allows local users to cause a denial of service (BUG)     via a crafted application that makes mmap system calls     and has a large pgoff argument to the remap_file_pages     system call.(CVE-2018-7740)

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.

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

  - A flaw was found in the way the Linux kernel's futex     subsystem handled the requeuing of certain Priority     Inheritance (PI) futexes. A local, unprivileged user     could use this flaw to escalate their privileges on the     system.(CVE-2014-3153)

  - An out-of-bounds write flaw was found in the way the     Apple Magic Mouse/Trackpad multi-touch driver handled     Human Interface Device (HID) reports with an invalid     size. An attacker with physical access to the system     could use this flaw to crash the system or,     potentially, escalate their privileges on the     system.(CVE-2014-3181)

  - An out-of-bounds read flaw was found in the way the     Logitech Unifying receiver driver handled HID reports     with an invalid device_index value. An attacker with     physical access to the system could use this flaw to     crash the system or, potentially, escalate their     privileges on the system.(CVE-2014-3182)

  - Multiple out-of-bounds write flaws were found in the     way the Cherry Cymotion keyboard driver, KYE/Genius     device drivers, Logitech device drivers, Monterey     Genius KB29E keyboard driver, Petalynx Maxter remote     control driver, and Sunplus wireless desktop driver     handled HID reports with an invalid report descriptor     size. An attacker with physical access to the system     could use either of these flaws to write data past an     allocated memory buffer.(CVE-2014-3184)

  - A memory corruption flaw was found in the way the USB     ConnectTech WhiteHEAT serial driver processed     completion commands sent via USB Request Blocks     buffers. An attacker with physical access to the system     could use this flaw to crash the system or,     potentially, escalate their privileges on the     system.(CVE-2014-3185)

  - It was found that Linux kernel's ptrace subsystem did     not properly sanitize the address-space-control bits     when the program-status word (PSW) was being set. On     IBM S/390 systems, a local, unprivileged user could use     this flaw to set address-space-control bits to the     kernel space, and thus gain read and write access to     kernel memory.(CVE-2014-3534)

  - A flaw was found in the way the Linux kernel's     kvm_iommu_map_pages() function handled IOMMU mapping     failures. A privileged user in a guest with an assigned     host device could use this flaw to crash the     host.(CVE-2014-3601)

  - It was found that KVM's Write to Model Specific     Register (WRMSR) instruction emulation would write     non-canonical values passed in by the guest to certain     MSRs in the host's context. A privileged guest user     could use this flaw to crash the host.(CVE-2014-3610)

  - A race condition flaw was found in the way the Linux     kernel's KVM subsystem handled PIT (Programmable     Interval Timer) emulation. A guest user who has access     to the PIT I/O ports could use this flaw to crash the     host.(CVE-2014-3611)

  - A flaw was found in the way the Linux kernel's keys     subsystem handled the termination condition in the     associative array garbage collection functionality. A     local, unprivileged user could use this flaw to crash     the system.(CVE-2014-3631)

  - It was found that the Linux kernel's KVM subsystem did     not handle the VM exits gracefully for the invept     (Invalidate Translations Derived from EPT)     instructions. On hosts with an Intel processor and     invept VM exit support, an unprivileged guest user     could use these instructions to crash the     guest.(CVE-2014-3645)

  - It was found that the Linux kernel's KVM subsystem did     not handle the VM exits gracefully for the invvpid     (Invalidate Translations Based on VPID) instructions.
    On hosts with an Intel processor and invppid VM exit     support, an unprivileged guest user could use these     instructions to crash the guest.(CVE-2014-3646)

  - A flaw was found in the way the Linux kernel's KVM     subsystem handled non-canonical addresses when     emulating instructions that change the RIP (for     example, branches or calls). A guest user with access     to an I/O or MMIO region could use this flaw to crash     the guest.(CVE-2014-3647)

  - A flaw was found in the way the Linux kernel's Stream     Control Transmission Protocol (SCTP) implementation     handled malformed Address Configuration Change Chunks     (ASCONF). A remote attacker could use either of these     flaws to crash the system.(CVE-2014-3673)

  - A flaw was found in the way the Linux kernel's Stream     Control Transmission Protocol (SCTP) implementation     handled duplicate Address Configuration Change Chunks     (ASCONF). A remote attacker could use either of these     flaws to crash the system.(CVE-2014-3687)

  - A flaw was found in the way the Linux kernel's Stream     Control Transmission Protocol (SCTP) implementation     handled the association's output queue. A remote     attacker could send specially crafted packets that     would cause the system to use an excessive amount of     memory, leading to a denial of service.(CVE-2014-3688)

  - It was found that the Linux kernel's KVM implementation     did not ensure that the host CR4 control register value     remained unchanged across VM entries on the same     virtual CPU. A local, unprivileged user could use this     flaw to cause a denial of service on the     system.(CVE-2014-3690)

  - An out-of-bounds memory access flaw was found in the     Linux kernel's system call auditing implementation. On     a system with existing audit rules defined, a local,     unprivileged user could use this flaw to leak kernel     memory to user space or, potentially, crash the     system.(CVE-2014-3917)

  - A flaw was found in the way Linux kernel's Transparent     Huge Pages (THP) implementation handled non-huge page     migration. A local, unprivileged user could use this     flaw to crash the kernel by migrating transparent     hugepages.(CVE-2014-3940)

  - The capabilities implementation in the Linux kernel     before 3.14.8 does not properly consider that     namespaces are inapplicable to inodes, which allows     local users to bypass intended chmod restrictions by     first creating a user namespace, as demonstrated by     setting the setgid bit on a file with group ownership     of root.(CVE-2014-4014)

  - An information leak flaw was found in the RAM Disks     Memory Copy (rd_mcp) backend driver of the iSCSI Target     subsystem of the Linux kernel. A privileged user could     use this flaw to leak the contents of kernel memory to     an iSCSI initiator remote client.(CVE-2014-4027)

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 Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2015-0290 advisory.

  - arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 3.17.2 on Intel processors does not     ensure that the value in the CR4 control register remains the same after a VM entry, which allows host OS     users to kill arbitrary processes or cause a denial of service (system disruption) by leveraging /dev/kvm     access, as demonstrated by PR_SET_TSC prctl calls within a modified copy of QEMU. (CVE-2014-3690)

  - The Linux kernel through 3.14.5 does not properly consider the presence of hugetlb entries, which allows     local users to cause a denial of service (memory corruption or system crash) by accessing certain memory     locations, as demonstrated by triggering a race condition via numa_maps read operations during hugepage     migration, related to fs/proc/task_mmu.c and mm/mempolicy.c. (CVE-2014-3940)

  - kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall     numbers during use of the perf subsystem, which allows local users to cause a denial of service (out-of-     bounds read and OOPS) or bypass the ASLR protection mechanism via a crafted application. (CVE-2014-7825)

  - kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall     numbers during use of the ftrace subsystem, which allows local users to gain privileges or cause a denial     of service (invalid pointer dereference) via a crafted application. (CVE-2014-7826)

  - Race condition in the ext4_file_write_iter function in fs/ext4/file.c in the Linux kernel through 3.17     allows local users to cause a denial of service (file unavailability) via a combination of a write action     and an F_SETFL fcntl operation for the O_DIRECT flag. (CVE-2014-8086)

  - net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack     entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols,     which allows remote attackers to bypass intended access restrictions via packets with disallowed port     numbers. (CVE-2014-8160)

  - The filesystem implementation in the Linux kernel before 3.13 performs certain operations on lists of     files with an inappropriate locking approach, which allows local users to cause a denial of service (soft     lockup or system crash) via unspecified use of Asynchronous I/O (AIO) operations. (CVE-2014-8172)

  - The pmd_none_or_trans_huge_or_clear_bad function in include/asm-generic/pgtable.h in the Linux kernel     before 3.13 on NUMA systems does not properly determine whether a Page Middle Directory (PMD) entry is a     transparent huge-table entry, which allows local users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have unspecified other impact via a crafted MADV_WILLNEED     madvise system call that leverages the absence of a page-table lock. (CVE-2014-8173)

  - The ieee80211_fragment function in net/mac80211/tx.c in the Linux kernel before 3.13.5 does not properly     maintain a certain tail pointer, which allows remote attackers to obtain sensitive cleartext information     by reading packets. (CVE-2014-8709)

  - Stack-based buffer overflow in the ttusbdecfe_dvbs_diseqc_send_master_cmd function in     drivers/media/usb/ttusb-dec/ttusbdecfe.c in the Linux kernel before 3.17.4 allows local users to cause a     denial of service (system crash) or possibly gain privileges via a large message length in an ioctl call.
    (CVE-2014-8884)

  - The XFS implementation in the Linux kernel before 3.15 improperly uses an old size value during remote     attribute replacement, which allows local users to cause a denial of service (transaction overrun and data     corruption) or possibly gain privileges by leveraging XFS filesystem access. (CVE-2015-0274)

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

Multiple vulnerabilities has been found and corrected in the Linux kernel :

The try_to_unmap_cluster function in mm/rmap.c in the Linux kernel before 3.14.3 does not properly consider which pages must be locked, which allows local users to cause a denial of service (system crash) by triggering a memory-usage pattern that requires removal of page-table mappings (CVE-2014-3122).

Multiple stack-based buffer overflows in the magicmouse_raw_event function in drivers/hid/hid-magicmouse.c in the Magic Mouse HID driver in the Linux kernel through 3.16.3 allow physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted device that provides a large amount of (1) EHCI or (2) XHCI data associated with an event (CVE-2014-3181).

Array index error in the logi_dj_raw_event function in drivers/hid/hid-logitech-dj.c in the Linux kernel before 3.16.2 allows physically proximate attackers to execute arbitrary code or cause a denial of service (invalid kfree) via a crafted device that provides a malformed REPORT_TYPE_NOTIF_DEVICE_UNPAIRED value (CVE-2014-3182).

The report_fixup functions in the HID subsystem in the Linux kernel before 3.16.2 might allow physically proximate attackers to cause a denial of service (out-of-bounds write) via a crafted device that provides a small report descriptor, related to (1) drivers/hid/hid-cherry.c, (2) drivers/hid/hid-kye.c, (3) drivers/hid/hid-lg.c, (4) drivers/hid/hid-monterey.c, (5) drivers/hid/hid-petalynx.c, and (6) drivers/hid/hid-sunplus.c (CVE-2014-3184).

Multiple buffer overflows in the command_port_read_callback function in drivers/usb/serial/whiteheat.c in the Whiteheat USB Serial Driver in the Linux kernel before 3.16.2 allow physically proximate attackers to execute arbitrary code or cause a denial of service (memory corruption and system crash) via a crafted device that provides a large amount of (1) EHCI or (2) XHCI data associated with a bulk response (CVE-2014-3185).

Buffer overflow in the picolcd_raw_event function in devices/hid/hid-picolcd_core.c in the PicoLCD HID device driver in the Linux kernel through 3.16.3, as used in Android on Nexus 7 devices, allows physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted device that sends a large report (CVE-2014-3186).

arch/s390/kernel/ptrace.c in the Linux kernel before 3.15.8 on the s390 platform does not properly restrict address-space control operations in PTRACE_POKEUSR_AREA requests, which allows local users to obtain read and write access to kernel memory locations, and consequently gain privileges, via a crafted application that makes a ptrace system call (CVE-2014-3534).

The kvm_iommu_map_pages function in virt/kvm/iommu.c in the Linux kernel through 3.16.1 miscalculates the number of pages during the handling of a mapping failure, which allows guest OS users to (1) cause a denial of service (host OS memory corruption) or possibly have unspecified other impact by triggering a large gfn value or (2) cause a denial of service (host OS memory consumption) by triggering a small gfn value that leads to permanently pinned pages (CVE-2014-3601).

The sctp_assoc_update function in net/sctp/associola.c in the Linux kernel through 3.15.8, when SCTP authentication is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by starting to establish an association between two endpoints immediately after an exchange of INIT and INIT ACK chunks to establish an earlier association between these endpoints in the opposite direction (CVE-2014-5077).

The do_remount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNT_LOCK_READONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a mount -o remount command within a user namespace (CVE-2014-5206).

Stack consumption vulnerability in the parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (uncontrolled recursion, and system crash or reboot) via a crafted iso9660 image with a CL entry referring to a directory entry that has a CL entry (CVE-2014-5471).

The parse_rock_ridge_inode_internal function in fs/isofs/rock.c in the Linux kernel through 3.16.1 allows local users to cause a denial of service (unkillable mount process) via a crafted iso9660 image with a self-referential CL entry (CVE-2014-5472).

The __udf_read_inode function in fs/udf/inode.c in the Linux kernel through 3.16.3 does not restrict the amount of ICB indirection, which allows physically proximate attackers to cause a denial of service (infinite loop or stack consumption) via a UDF filesystem with a crafted inode (CVE-2014-6410).

The do_umount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAP_SYS_ADMIN capability for do_remount_sb calls that change the root filesystem to read-only, which allows local users to cause a denial of service (loss of writability) by making certain unshare system calls, clearing the / MNT_LOCKED flag, and making an MNT_FORCE umount system call (CVE-2014-7975).

The updated packages provides a solution for these security issues.

The 3.14.15 stable update contains a number of important fixes across the tree. The 3.14.14 stable update contains a number of important fixes across the tree.

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

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:1023 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux     operating system.

    * It was found that Linux kernel's ptrace subsystem did not properly     sanitize the address-space-control bits when the program-status word (PSW)     was being set. On IBM S/390 systems, a local, unprivileged user could use     this flaw to set address-space-control bits to the kernel space, and thus     gain read and write access to kernel memory. (CVE-2014-3534, Important)

    * It was found that the permission checks performed by the Linux kernel     when a netlink message was received were not sufficient. A local,     unprivileged user could potentially bypass these restrictions by passing a     netlink socket as stdout or stderr to a more privileged process and     altering the output of this process. (CVE-2014-0181, Moderate)

    * It was found that a remote attacker could use a race condition flaw in     the ath_tx_aggr_sleep() function to crash the system by creating large     network traffic on the system's Atheros 9k wireless network adapter.
    (CVE-2014-2672, Moderate)

    * A flaw was found in the way the Linux kernel performed forking inside of     a transaction. A local, unprivileged user on a PowerPC system that supports     transactional memory could use this flaw to crash the system.
    (CVE-2014-2673, Moderate)

    * A race condition flaw was found in the way the Linux kernel's mac80211     subsystem implementation handled synchronization between TX and STA wake-up     code paths. A remote attacker could use this flaw to crash the system.
    (CVE-2014-2706, Moderate)

    * An integer underflow flaw was found in the way the Linux kernel's Stream     Control Transmission Protocol (SCTP) implementation processed certain     COOKIE_ECHO packets. By sending a specially crafted SCTP packet, a remote     attacker could use this flaw to prevent legitimate connections to a     particular SCTP server socket to be made. (CVE-2014-4667, Moderate)

    Red Hat would like to thank Martin Schwidefsky of IBM for reporting     CVE-2014-3534, Andy Lutomirski for reporting CVE-2014-0181, and Gopal Reddy     Kodudula of Nokia Siemens Networks for reporting CVE-2014-4667.

    This update also fixes the following bugs:

    * Due to a NULL pointer dereference bug in the IPIP and SIT tunneling code,     a kernel panic could be triggered when using IPIP or SIT tunnels with     IPsec. This update restructures the related code to avoid a NULL pointer     dereference and the kernel no longer panics when using IPIP or SIT tunnels     with IPsec. (BZ#1114957)

    * Previously, an IBM POWER8 system could terminate unexpectedly when the     kernel received an IRQ while handling a transactional memory re-checkpoint     critical section. This update ensures that IRQs are disabled in this     situation and the problem no longer occurs. (BZ#1113150)

    * A missing read memory barrier, rmb(), in the bnx2x driver caused the     kernel to crash under various circumstances. This problem has been fixed     by adding an rmb() call to the relevant place in the bnx2x code.
    (BZ#1107721)

    * The hpwdt driver previously emitted a panic message that was misleading     on certain HP systems. This update ensures that upon a kernel panic, hpwdt     displays information valid on all HP systems. (BZ#1096961)

    * The qla2xxx driver has been upgraded to version 8.06.00.08.07.0-k3,     which provides a number of bug fixes over the previous version in order to     correct various timeout problems with the mailbox commands. (BZ#1112389)

    * The SCSI mid-layer could retry an I/O operation indefinitely if a storage     array repeatedly returned a CHECK CONDITION status to that I/O operation     but the sense data was invalid. This update fixes the problem by limiting     a time for which is such an I/O operation retried. (BZ#1114468)

    All kernel users are advised to upgrade to these updated packages, which     contain backported patches to correct these issues. The system must be     rebooted for this update to take effect.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-1023 advisory.

  - Race condition in the ath_tx_aggr_sleep function in drivers/net/wireless/ath/ath9k/xmit.c in the Linux     kernel before 3.13.7 allows remote attackers to cause a denial of service (system crash) via a large     amount of network traffic that triggers certain list deletions. (CVE-2014-2672)

  - Race condition in the mac80211 subsystem in the Linux kernel before 3.13.7 allows remote attackers to     cause a denial of service (system crash) via network traffic that improperly interacts with the     WLAN_STA_PS_STA state (aka power-save mode), related to sta_info.c and tx.c. (CVE-2014-2706)

  - The Netlink implementation in the Linux kernel through 3.14.1 does not provide a mechanism for authorizing     socket operations based on the opener of a socket, which allows local users to bypass intended access     restrictions and modify network configurations by using a Netlink socket for the (1) stdout or (2) stderr     of a setuid program. (CVE-2014-0181)

  - The arch_dup_task_struct function in the Transactional Memory (TM) implementation in     arch/powerpc/kernel/process.c in the Linux kernel before 3.13.7 on the powerpc platform does not properly     interact with the clone and fork system calls, which allows local users to cause a denial of service     (Program Check and system crash) via certain instructions that are executed with the processor in the     Transactional state. (CVE-2014-2673)

  - arch/s390/kernel/ptrace.c in the Linux kernel before 3.15.8 on the s390 platform does not properly     restrict address-space control operations in PTRACE_POKEUSR_AREA requests, which allows local users to     obtain read and write access to kernel memory locations, and consequently gain privileges, via a crafted     application that makes a ptrace system call. (CVE-2014-3534)

  - The sctp_association_free function in net/sctp/associola.c in the Linux kernel before 3.15.2 does not     properly manage a certain backlog value, which allows remote attackers to cause a denial of service     (socket outage) via a crafted SCTP packet. (CVE-2014-4667)

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

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 7.

The Red Hat Security Response Team has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

* It was found that Linux kernel's ptrace subsystem did not properly sanitize the address-space-control bits when the program-status word (PSW) was being set. On IBM S/390 systems, a local, unprivileged user could use this flaw to set address-space-control bits to the kernel space, and thus gain read and write access to kernel memory.
(CVE-2014-3534, Important)

* It was found that the permission checks performed by the Linux kernel when a netlink message was received were not sufficient. A local, unprivileged user could potentially bypass these restrictions by passing a netlink socket as stdout or stderr to a more privileged process and altering the output of this process. (CVE-2014-0181, Moderate)

* It was found that a remote attacker could use a race condition flaw in the ath_tx_aggr_sleep() function to crash the system by creating large network traffic on the system's Atheros 9k wireless network adapter. (CVE-2014-2672, Moderate)

* A flaw was found in the way the Linux kernel performed forking inside of a transaction. A local, unprivileged user on a PowerPC system that supports transactional memory could use this flaw to crash the system. (CVE-2014-2673, Moderate)

* A race condition flaw was found in the way the Linux kernel's mac80211 subsystem implementation handled synchronization between TX and STA wake-up code paths. A remote attacker could use this flaw to crash the system. (CVE-2014-2706, Moderate)

* An integer underflow flaw was found in the way the Linux kernel's Stream Control Transmission Protocol (SCTP) implementation processed certain COOKIE_ECHO packets. By sending a specially crafted SCTP packet, a remote attacker could use this flaw to prevent legitimate connections to a particular SCTP server socket to be made.
(CVE-2014-4667, Moderate)

Red Hat would like to thank Martin Schwidefsky of IBM for reporting CVE-2014-3534, Andy Lutomirski for reporting CVE-2014-0181, and Gopal Reddy Kodudula of Nokia Siemens Networks for reporting CVE-2014-4667.

This update also fixes the following bugs :

* Due to a NULL pointer dereference bug in the IPIP and SIT tunneling code, a kernel panic could be triggered when using IPIP or SIT tunnels with IPsec. This update restructures the related code to avoid a NULL pointer dereference and the kernel no longer panics when using IPIP or SIT tunnels with IPsec. (BZ#1114957)

* Previously, an IBM POWER8 system could terminate unexpectedly when the kernel received an IRQ while handling a transactional memory re-checkpoint critical section. This update ensures that IRQs are disabled in this situation and the problem no longer occurs.
(BZ#1113150)

* A missing read memory barrier, rmb(), in the bnx2x driver caused the kernel to crash under various circumstances. This problem has been fixed by adding an rmb() call to the relevant place in the bnx2x code.
(BZ#1107721)

* The hpwdt driver previously emitted a panic message that was misleading on certain HP systems. This update ensures that upon a kernel panic, hpwdt displays information valid on all HP systems.
(BZ#1096961)

* The qla2xxx driver has been upgraded to version 8.06.00.08.07.0-k3, which provides a number of bug fixes over the previous version in order to correct various timeout problems with the mailbox commands.
(BZ#1112389)

* The SCSI mid-layer could retry an I/O operation indefinitely if a storage array repeatedly returned a CHECK CONDITION status to that I/O operation but the sense data was invalid. This update fixes the problem by limiting a time for which is such an I/O operation retried.
(BZ#1114468)

All kernel users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

The 3.15.7 stable update contains a number of important fixes throughout the tree.

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

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or privilege escalation :

  - CVE-2014-3534     Martin Schwidefsky of IBM discovered that the ptrace     subsystem does not properly sanitize the psw mask value.
    On s390 systems, an unprivileged local user could use     this flaw to set address space control bits to kernel     space combination and thus gain read/write access to     kernel memory.

  - CVE-2014-4667     Gopal Reddy Kodudula of Nokia Siemens Networks     discovered that the sctp_association_free function does     not properly manage a certain backlog value, which     allows remote attackers to cause a denial of service     (socket outage) via a crafted SCTP packet.

  - CVE-2014-4943     Sasha Levin discovered a flaw in the Linux kernel's     point-to-point protocol (PPP) when used with the Layer     Two Tunneling Protocol (L2TP). An unprivileged local     user could use this flaw for privilege escalation.

ID	Name	Product	Family	Severity
124828	EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1505)	Nessus	Huawei Local Security Checks	critical
124804	EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1480)	Nessus	Huawei Local Security Checks	high
81800	Oracle Linux 7 : kernel (ELSA-2015-0290)	Nessus	Oracle Linux Local Security Checks	high
78617	Mandriva Linux Security Advisory : kernel (MDVSA-2014:201)	Nessus	Mandriva Local Security Checks	high
77095	Fedora 19 : kernel-3.14.15-100.fc19 (2014-9142)	Nessus	Fedora Local Security Checks	high
77046	RHEL 7 : kernel (RHSA-2014:1023)	Nessus	Red Hat Local Security Checks	high
77045	Oracle Linux 7 : kernel (ELSA-2014-1023)	Nessus	Oracle Linux Local Security Checks	high
77034	CentOS 7 : kernel (CESA-2014:1023)	Nessus	CentOS Local Security Checks	high
76984	Fedora 20 : kernel-3.15.7-200.fc20 (2014-9010)	Nessus	Fedora Local Security Checks	high
76884	Debian DSA-2992-1 : linux - security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2014-3534

high

Tenable Plugins

critical

high

high

high

high

high

high

high

high

high