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SUSE-SU-2018:1080-1

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SUSE-SU-2018:1080-1

Published: 25 Apr 2018Last Modified: 4 Feb 2026

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Summary: Security update for the Linux Kernel

Details: The SUSE Linux Enterprise 11 SP4 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). Enhancements and bugfixes over the previous fixes have been added to this kernel. - CVE-2018-10087: The kernel_wait4 function in kernel/exit.c might have allowed local users to cause a denial of service by triggering an attempted use of the -INT_MIN value (bnc#1089608). - CVE-2018-7757: Memory leak in the sas_smp_get_phy_events function in drivers/scsi/libsas/sas_expander.c allowed local users to cause a denial of service (memory consumption) via many read accesses to files in the /sys/class/sas_phy directory, as demonstrated by the /sys/class/sas_phy/phy-1:0:12/invalid_dword_count file (bnc#1084536). - CVE-2018-7566: There was a buffer overflow via an SNDRV_SEQ_IOCTL_SET_CLIENT_POOL ioctl write operation to /dev/snd/seq by a local user (bnc#1083483). - CVE-2017-0861: Use-after-free vulnerability in the snd_pcm_info function in the ALSA subsystem allowed attackers to gain privileges via unspecified vectors (bnc#1088260). - CVE-2018-8822: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c could be exploited by malicious NCPFS servers to crash the kernel or execute code (bnc#1086162). - CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver. (bnc#1072865). - CVE-2017-18203: The dm_get_from_kobject function in drivers/md/dm.c allowed local users to cause a denial of service (BUG) by leveraging a race condition with __dm_destroy during creation and removal of DM devices (bnc#1083242). - CVE-2017-16911: The vhci_hcd driver allowed allows local attackers to disclose kernel memory addresses. Successful exploitation requires that a USB device is attached over IP (bnc#1078674). - CVE-2017-18208: The madvise_willneed function in mm/madvise.c local users to cause a denial of service (infinite loop) by triggering use of MADVISE_WILLNEED for a DAX mapping (bnc#1083494). - CVE-2017-16644: The hdpvr_probe function in drivers/media/usb/hdpvr/hdpvr-core.c allowed local users to cause a denial of service (improper error handling and system crash) or possibly have unspecified other impact via a crafted USB device (bnc#1067118). - CVE-2018-6927: The futex_requeue function in kernel/futex.c in the Linux kernel might allow attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact by triggering a negative wake or requeue value (bnc#1080757). - CVE-2017-16914: The 'stub_send_ret_submit()' function (drivers/usb/usbip/stub_tx.c) allowed attackers to cause a denial of service (NULL pointer dereference) via a specially crafted USB over IP packet (bnc#1078669). - CVE-2016-7915: The hid_input_field function in drivers/hid/hid-core.c allowed physically proximate attackers to obtain sensitive information from kernel memory or cause a denial of service (out-of-bounds read) by connecting a device, as demonstrated by a Logitech DJ receiver (bnc#1010470). - CVE-2015-5156: The virtnet_probe function in drivers/net/virtio_net.c attempted to support a FRAGLIST feature without proper memory allocation, which allowed guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets (bnc#940776). - CVE-2017-12190: The bio_map_user_iov and bio_unmap_user functions in block/bio.c did unbalanced refcounting when a SCSI I/O vector has small consecutive buffers belonging to the same page. The bio_add_pc_page function merges them into one, but the page reference is never dropped. This causes a memory leak and possible system lockup (exploitable against the host OS by a guest OS user, if a SCSI disk is passed through to a virtual machine) due to an out-of-memory condition (bnc#1062568). - CVE-2017-16912: The 'get_pipe()' function (drivers/usb/usbip/stub_rx.c) allowed attackers to cause a denial of service (out-of-bounds read) via a specially crafted USB over IP packet (bnc#1078673). - CVE-2017-16913: The 'stub_recv_cmd_submit()' function (drivers/usb/usbip/stub_rx.c) when handling CMD_SUBMIT packets allowed attackers to cause a denial of service (arbitrary memory allocation) via a specially crafted USB over IP packet (bnc#1078672). The following non-security bugs were fixed: - af_iucv: enable control sends in case of SEND_SHUTDOWN (bnc#1085513, LTC#165135). - cifs: fix buffer overflow in cifs_build_path_to_root() (bsc#1085113). - drm/mgag200: fix a test in mga_vga_mode_valid() (bsc#1087092). - hrtimer: Ensure POSIX compliance (relative CLOCK_REALTIME hrtimers) (bnc#1013018). - hrtimer: Reset hrtimer cpu base proper on CPU hotplug (bnc#1013018). - ide-cd: workaround VMware ESXi cdrom emulation bug (bsc#1080813). - ipc/msg: introduce msgctl(MSG_STAT_ANY) (bsc#1072689). - ipc/sem: introduce semctl(SEM_STAT_ANY) (bsc#1072689). - ipc/shm: introduce shmctl(SHM_STAT_ANY) (bsc#1072689). - jffs2: Fix use-after-free bug in jffs2_iget()'s error handling path (git-fixes). - kabi: x86/kaiser: properly align trampoline stack. - keys: do not let add_key() update an uninstantiated key (bnc#1063416). - keys: prevent creating a different user's keyrings (bnc#1065999). - leds: do not overflow sysfs buffer in led_trigger_show (bsc#1080464). - mm/mmap.c: do not blow on PROT_NONE MAP_FIXED holes in the stack (bnc#1039348). - nfsv4: fix getacl head length estimation (git-fixes). - pci: Use function 0 VPD for identical functions, regular VPD for others (bnc#943786 git-fixes). - pipe: actually allow root to exceed the pipe buffer limits (git-fixes). - posix-timers: Protect posix clock array access against speculation (bnc#1081358). - powerpc/pseries: Support firmware disable of RFI flush (bsc#1068032, bsc#1075088). - qeth: repair SBAL elements calculation (bnc#1085513, LTC#165484). - Revert 'USB: cdc-acm: fix broken runtime suspend' (bsc#1067912) - s390/qeth: fix underestimated count of buffer elements (bnc#1082091, LTC#164529). - scsi: sr: workaround VMware ESXi cdrom emulation bug (bsc#1080813). - usbnet: Fix a race between usbnet_stop() and the BH (bsc#1083275). - x86-64: Move the 'user' vsyscall segment out of the data segment (bsc#1082424). - x86/espfix: Fix return stack in do_double_fault() (bsc#1085279). - x86/kaiser: properly align trampoline stack (bsc#1087260). - x86/retpoline: do not perform thunk calls in ring3 vsyscall code (bsc#1085331). - xen/x86/asm/traps: Disable tracing and kprobes in fixup_bad_iret and sync_regs (bsc#909077). - xen/x86/cpu: Check speculation control CPUID bit (bsc#1068032). - xen/x86/cpu: Factor out application of forced CPU caps (bsc#1075994 bsc#1075091). - xen/x86/cpu: Fix bootup crashes by sanitizing the argument of the 'clearcpuid=' command-line option (bsc#1065600). - xen/x86/cpu: Sync CPU feature flags late (bsc#1075994 bsc#1075091). - xen/x86/entry: Use IBRS on entry to kernel space (bsc#1068032). - xen/x86/idle: Toggle IBRS when going idle (bsc#1068032). - xen/x86/kaiser: Move feature detection up (bsc#1068032). - xfs: check for buffer errors before waiting (bsc#1052943). - xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near (bsc#1087762). - xfs: really fix the cursor leak in xfs_alloc_ag_vextent_near (bsc#1087762).

Affected packages

Package

Name: kernel-docs

Purl: pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4

Affected ranges

Type: ECOSYSTEM

Events:

Introduced- 0

Fixed -3.0.101-108.38.1

Affected versions

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High