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Important Kernel Update for Red Hat Enterprise Linux 7 Addresses DoS Risk

Redhat Large Esm H500
An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability
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Hash: SHA256

====================================================================                   Red Hat Security Advisory

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2019:2029-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2029
Issue date:        2019-08-06
CVE Names:         CVE-2018-7755 CVE-2018-8087 CVE-2018-9363 
                   CVE-2018-9516 CVE-2018-9517 CVE-2018-10853 
                   CVE-2018-13053 CVE-2018-13093 CVE-2018-13094 
                   CVE-2018-13095 CVE-2018-14625 CVE-2018-14734 
                   CVE-2018-15594 CVE-2018-16658 CVE-2018-16885 
                   CVE-2018-18281 CVE-2019-3459 CVE-2019-3460 
                   CVE-2019-3882 CVE-2019-3900 CVE-2019-5489 
                   CVE-2019-7222 CVE-2019-11599 CVE-2019-11810 
                   CVE-2019-11833 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

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

Security Fix(es):

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS
(CVE-2019-3900)

* Kernel: page cache side channel attacks (CVE-2019-5489)

* kernel: Buffer overflow in hidp_process_report (CVE-2018-9363)

* kernel: l2tp: Race condition between pppol2tp_session_create() and
l2tp_eth_create() (CVE-2018-9517)

* kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853)

* kernel: use-after-free Read in vhost_transport_send_pkt (CVE-2018-14625)

* kernel: use-after-free in ucma_leave_multicast in
drivers/infiniband/core/ucma.c (CVE-2018-14734)

* kernel: Mishandling of indirect calls weakens Spectre mitigation for
paravirtual guests (CVE-2018-15594)

* kernel: TLB flush happens too late on mremap (CVE-2018-18281)

* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT
(CVE-2019-3459)

* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP
(CVE-2019-3460)

* kernel: denial of service vector through vfio DMA mappings
(CVE-2019-3882)

* kernel: fix race condition between mmget_not_zero()/get_task_mm() and
core dumping (CVE-2019-11599)

* kernel: a NULL pointer dereference in
drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)

* kernel: fs/ext4/extents.c leads to information disclosure
(CVE-2019-11833)

* kernel: Information exposure in fd_locked_ioctl function in
drivers/block/floppy.c (CVE-2018-7755)

* kernel: Memory leak in
drivers/net/wireless/mac80211_hwsim.c:hwsim_new_radio_nl() can lead to
potential denial of service (CVE-2018-8087)

* kernel: HID: debug: Buffer overflow in hid_debug_events_read() in
drivers/hid/hid-debug.c (CVE-2018-9516)

* kernel: Integer overflow in the alarm_timer_nsleep function
(CVE-2018-13053)

* kernel: NULL pointer dereference in lookup_slow function (CVE-2018-13093)

* kernel: NULL pointer dereference in xfs_da_shrink_inode function
(CVE-2018-13094)

* kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c
(CVE-2018-13095)

* kernel: Information leak in cdrom_ioctl_drive_status (CVE-2018-16658)

* kernel: out-of-bound read in memcpy_fromiovecend() (CVE-2018-16885)

* Kernel: KVM: leak of uninitialized stack contents to guest
(CVE-2019-7222)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 7.7 Release Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1335986 - BUG: memory allocation failure in inode_doinit_with_dentry()/context_to_sid()
1436351 - [nohz]: wrong user and system time accounting
1537033 - [RHEL7.6] BUG_ON(s->uptodate < disks - 1) condition encountered in RAID6 array with 6 disks and while one disk had failed.
1552203 - RHEL7.4 NFS4.1 client and server repeated SEQUENCE / TEST_STATEIDs with SEQUENCE Reply has SEQ4_STATUS_RECALLABLE_STATE_REVOKED set - NFS server should return NFS4ERR_DELEG_REVOKED or NFS4ERR_BAD_STATEID for revoked delegations
1553216 - CVE-2018-7755 kernel: Information exposure in fd_locked_ioctl function in drivers/block/floppy.c
1555145 - CVE-2018-8087 kernel: Memory leak in drivers/net/wireless/mac80211_hwsim.c:hwsim_new_radio_nl() can lead to potential denial of service
1577640 - getdents on cifs with 4k buffer loses files
1589890 - CVE-2018-10853 kernel: kvm: guest userspace to guest kernel write
1590228 - kernel: openat with O_TMPFILE and mode 0 fails with EACCES (if not root)
1593417 - [mm] kernel BUG at lib/idr.c:1157, kmemcg_id is -1 when creating or destroying mem cgroups
1597747 - CVE-2018-13053 kernel: Integer overflow in the alarm_timer_nsleep function
1597766 - CVE-2018-13093 kernel: NULL pointer dereference in lookup_slow function
1597771 - CVE-2018-13094 kernel: NULL pointer dereference in xfs_da_shrink_inode function
1597775 - CVE-2018-13095 kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c
1608955 - EFI stub: ERROR: Failed to alloc highmem for initrd
1609699 - virtio-vsock - guest kernel panic with ctrl+c after hot-unplug
1611005 - CVE-2018-14734 kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c
1613056 - BUG: SELinux does not skip mmap/PROT_EXEC checks for internal files when invoking shmat(2)
1616109 - 7.6 Alpha - Lenovo P52 gnome-shell, suspend reboots machine
1616425 - 7.6 Alpha - Lenovo P52 - Screen goes blank and stays blank(dies)
1619846 - CVE-2018-14625 kernel: use-after-free Read in vhost_transport_send_pkt
1620555 - CVE-2018-15594 kernel: Mishandling of indirect calls weakens Spectre mitigation for paravirtual guests
1622167 - Fix potential divide-by-zero in sunrpc reserved port range calculation
1623067 - CVE-2018-9363 kernel: Buffer overflow in hidp_process_report
1627563 - [RHEL 7.7] raid10 kernel NULL pointer dereference in md_do_sync during raid creation
1627731 - CVE-2018-16658 kernel: Information leak in cdrom_ioctl_drive_status
1628378 - dm-cache does not pass discard I/Os to origin storage device
1631036 - CVE-2018-9516 kernel: HID: debug: Buffer overflow in hid_debug_events_read() in drivers/hid/hid-debug.c
1631045 - CVE-2018-9517 kernel: l2tp: Race condition between pppol2tp_session_create() and l2tp_eth_create()
1645121 - CVE-2018-18281 kernel: TLB flush happens too late on mremap
1659146 - Allow drivers to set .force_blk_mq in scsi_host_template to enable per-driver SCSI-MQ usage
1661503 - CVE-2018-16885 kernel: out-of-bound read in memcpy_fromiovecend()
1663176 - CVE-2019-3459 kernel: Heap address information leak while using L2CAP_GET_CONF_OPT
1663179 - CVE-2019-3460 kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP
1664110 - CVE-2019-5489 Kernel: page cache side channel attacks
1665990 - df reports negative IUsed value for prjquota set directories.
1671930 - CVE-2019-7222 Kernel: KVM: leak of uninitialized stack contents to guest
1684780 - aio O_DIRECT writes to non-page-aligned file locations on ext4 can result in the overlapped portion of the page containing zeros
1689426 - CVE-2019-3882 kernel: denial of service vector through vfio DMA mappings
1693457 - overlayfs update to upstream 4.18
1698757 - CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS
1705937 - CVE-2019-11599 kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping
1709164 - CVE-2019-11810 kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS
1712072 - CVE-2019-11833 kernel: fs/ext4/extents.c leads to information disclosure

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
kernel-3.10.0-1062.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.el7.noarch.rpm
kernel-doc-3.10.0-1062.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-3.10.0-1062.el7.x86_64.rpm
kernel-debug-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-devel-3.10.0-1062.el7.x86_64.rpm
kernel-headers-3.10.0-1062.el7.x86_64.rpm
kernel-tools-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.el7.x86_64.rpm
perf-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-1062.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.el7.noarch.rpm
kernel-doc-3.10.0-1062.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-3.10.0-1062.el7.x86_64.rpm
kernel-debug-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-devel-3.10.0-1062.el7.x86_64.rpm
kernel-headers-3.10.0-1062.el7.x86_64.rpm
kernel-tools-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.el7.x86_64.rpm
perf-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-1062.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.el7.noarch.rpm
kernel-doc-3.10.0-1062.el7.noarch.rpm

ppc64:
bpftool-3.10.0-1062.el7.ppc64.rpm
bpftool-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-3.10.0-1062.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-1062.el7.ppc64.rpm
kernel-debug-3.10.0-1062.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-debug-devel-3.10.0-1062.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.el7.ppc64.rpm
kernel-devel-3.10.0-1062.el7.ppc64.rpm
kernel-headers-3.10.0-1062.el7.ppc64.rpm
kernel-tools-3.10.0-1062.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-tools-libs-3.10.0-1062.el7.ppc64.rpm
perf-3.10.0-1062.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.el7.ppc64.rpm
python-perf-3.10.0-1062.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.el7.ppc64.rpm

ppc64le:
bpftool-3.10.0-1062.el7.ppc64le.rpm
bpftool-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-3.10.0-1062.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-1062.el7.ppc64le.rpm
kernel-debug-3.10.0-1062.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.el7.ppc64le.rpm
kernel-devel-3.10.0-1062.el7.ppc64le.rpm
kernel-headers-3.10.0-1062.el7.ppc64le.rpm
kernel-tools-3.10.0-1062.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-1062.el7.ppc64le.rpm
perf-3.10.0-1062.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.el7.ppc64le.rpm
python-perf-3.10.0-1062.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.el7.ppc64le.rpm

s390x:
bpftool-3.10.0-1062.el7.s390x.rpm
bpftool-debuginfo-3.10.0-1062.el7.s390x.rpm
kernel-3.10.0-1062.el7.s390x.rpm
kernel-debug-3.10.0-1062.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.s390x.rpm
kernel-debug-devel-3.10.0-1062.el7.s390x.rpm
kernel-debuginfo-3.10.0-1062.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-1062.el7.s390x.rpm
kernel-devel-3.10.0-1062.el7.s390x.rpm
kernel-headers-3.10.0-1062.el7.s390x.rpm
kernel-kdump-3.10.0-1062.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-1062.el7.s390x.rpm
kernel-kdump-devel-3.10.0-1062.el7.s390x.rpm
perf-3.10.0-1062.el7.s390x.rpm
perf-debuginfo-3.10.0-1062.el7.s390x.rpm
python-perf-3.10.0-1062.el7.s390x.rpm
python-perf-debuginfo-3.10.0-1062.el7.s390x.rpm

x86_64:
bpftool-3.10.0-1062.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-3.10.0-1062.el7.x86_64.rpm
kernel-debug-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-devel-3.10.0-1062.el7.x86_64.rpm
kernel-headers-3.10.0-1062.el7.x86_64.rpm
kernel-tools-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.el7.x86_64.rpm
perf-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
bpftool-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-1062.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-1062.el7.ppc64.rpm
perf-debuginfo-3.10.0-1062.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-1062.el7.ppc64.rpm

ppc64le:
bpftool-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-1062.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-1062.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-1062.el7.ppc64le.rpm
perf-debuginfo-3.10.0-1062.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-1062.el7.ppc64le.rpm

x86_64:
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-1062.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-1062.el7.noarch.rpm
kernel-doc-3.10.0-1062.el7.noarch.rpm

x86_64:
bpftool-3.10.0-1062.el7.x86_64.rpm
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-3.10.0-1062.el7.x86_64.rpm
kernel-debug-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-devel-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-devel-3.10.0-1062.el7.x86_64.rpm
kernel-headers-3.10.0-1062.el7.x86_64.rpm
kernel-tools-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-3.10.0-1062.el7.x86_64.rpm
perf-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-1062.el7.x86_64.rpm
perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-7755
https://access.redhat.com/security/cve/CVE-2018-8087
https://access.redhat.com/security/cve/CVE-2018-9363
https://access.redhat.com/security/cve/CVE-2018-9516
https://access.redhat.com/security/cve/CVE-2018-9517
https://access.redhat.com/security/cve/CVE-2018-10853
https://access.redhat.com/security/cve/CVE-2018-13053
https://access.redhat.com/security/cve/CVE-2018-13093
https://access.redhat.com/security/cve/CVE-2018-13094
https://access.redhat.com/security/cve/CVE-2018-13095
https://access.redhat.com/security/cve/CVE-2018-14625
https://access.redhat.com/security/cve/CVE-2018-14734
https://access.redhat.com/security/cve/CVE-2018-15594
https://access.redhat.com/security/cve/CVE-2018-16658
https://access.redhat.com/security/cve/CVE-2018-16885
https://access.redhat.com/security/cve/CVE-2018-18281
https://access.redhat.com/security/cve/CVE-2019-3459
https://access.redhat.com/security/cve/CVE-2019-3460
https://access.redhat.com/security/cve/CVE-2019-3882
https://access.redhat.com/security/cve/CVE-2019-3900
https://access.redhat.com/security/cve/CVE-2019-5489
https://access.redhat.com/security/cve/CVE-2019-7222
https://access.redhat.com/security/cve/CVE-2019-11599
https://access.redhat.com/security/cve/CVE-2019-11810
https://access.redhat.com/security/cve/CVE-2019-11833
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.7_release_notes/index

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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Important Kernel Update for Red Hat Enterprise Linux 7 Addresses DoS Risk

red hat
Calendar Grey August 6, 2019
Dist Redhat Esm H88
Latest kernel security patch for Red Hat Enterprise Linux 7 resolves critical vulnerabilities and boosts overall system performance.
An update for kernel is now available for Red Hat Enterprise Linux 7

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)
* Kernel: page cache side channel attacks (CVE-2019-5489)
* kernel: Buffer overflow in hidp_process_report (CVE-2018-9363)
* kernel: l2tp: Race condition between pppol2tp_session_create() and l2tp_eth_create() (CVE-2018-9517)
* kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853)
* kernel: use-after-free Read in vhost_transport_send_pkt (CVE-2018-14625)
* kernel: use-after-free in ucma_leave_multicast in drivers/infiniband/core/ucma.c (CVE-2018-14734)
* kernel: Mishandling of indirect calls weakens Spectre mitigation for paravirtual guests (CVE-2018-15594)
* kernel: TLB flush happens too late on mremap (CVE-2018-18281)
* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)
* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)
* kernel: denial of service vector through vfio DMA mappings (CVE-2019-3882)
* kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)
* kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)
* kernel: fs/ext4/extents.c leads to information disclosure (CVE-2019-11833)
* kernel: Information exposure in fd_locked_ioctl function in drivers/block/floppy.c (CVE-2018-7755)
* kernel: Memory leak in drivers/net/wireless/mac80211_hwsim.c:hwsim_new_radio_nl() can lead to potential denial of service (CVE-2018-8087)
* kernel: HID: debug: Buffer overflow in hid_debug_events_read() in drivers/hid/hid-debug.c (CVE-2018-9516)
* kernel: Integer overflow in the alarm_timer_nsleep function (CVE-2018-13053)
* kernel: NULL pointer dereference in lookup_slow function (CVE-2018-13093)
* kernel: NULL pointer dereference in xfs_da_shrink_inode function (CVE-2018-13094)
* kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c (CVE-2018-13095)
* kernel: Information leak in cdrom_ioctl_drive_status (CVE-2018-16658)
* kernel: out-of-bound read in memcpy_fromiovecend() (CVE-2018-16885)
* Kernel: KVM: leak of uninitialized stack contents to guest (CVE-2019-7222)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

References

https://access.redhat.com/security/cve/CVE-2018-7755 https://access.redhat.com/security/cve/CVE-2018-8087 https://access.redhat.com/security/cve/CVE-2018-9363 https://access.redhat.com/security/cve/CVE-2018-9516 https://access.redhat.com/security/cve/CVE-2018-9517 https://access.redhat.com/security/cve/CVE-2018-10853 https://access.redhat.com/security/cve/CVE-2018-13053 https://access.redhat.com/security/cve/CVE-2018-13093 https://access.redhat.com/security/cve/CVE-2018-13094 https://access.redhat.com/security/cve/CVE-2018-13095 https://access.redhat.com/security/cve/CVE-2018-14625 https://access.redhat.com/security/cve/CVE-2018-14734 https://access.redhat.com/security/cve/CVE-2018-15594 https://access.redhat.com/security/cve/CVE-2018-16658 https://access.redhat.com/security/cve/CVE-2018-16885 https://access.redhat.com/security/cve/CVE-2018-18281 https://access.redhat.com/security/cve/CVE-2019-3459 https://access.redhat.com/security/cve/CVE-2019-3460 https://access.redhat.com/security/cve/CVE-2019-3882 https://access.redhat.com/security/cve/CVE-2019-3900 https://access.redhat.com/security/cve/CVE-2019-5489 https://access.redhat.com/security/cve/CVE-2019-7222 https://access.redhat.com/security/cve/CVE-2019-11599 https://access.redhat.com/security/cve/CVE-2019-11810 Read the Full Advisory

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-1062.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1062.el7.noarch.rpm kernel-doc-3.10.0-1062.el7.noarch.rpm
x86_64: bpftool-3.10.0-1062.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-3.10.0-1062.el7.x86_64.rpm kernel-debug-3.10.0-1062.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-debug-devel-3.10.0-1062.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm kernel-devel-3.10.0-1062.el7.x86_64.rpm kernel-headers-3.10.0-1062.el7.x86_64.rpm kernel-tools-3.10.0-1062.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-tools-libs-3.10.0-1062.el7.x86_64.rpm perf-3.10.0-1062.el7.x86_64.rpm perf-debuginfo-3.10.0-1062.el7.x86_64.rpm python-perf-3.10.0-1062.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1062.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bpftool-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1062.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1062.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1062.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:2029-01
Product: Red Hat Enterprise Linux
Issue date: 2019-08-06

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1335986 - BUG: memory allocation failure in inode_doinit_with_dentry()/context_to_sid()

1436351 - [nohz]: wrong user and system time accounting

1537033 - [RHEL7.6] BUG_ON(s->uptodate < disks - 1) condition encountered in RAID6 array with 6 disks and while one disk had failed.

1552203 - RHEL7.4 NFS4.1 client and server repeated SEQUENCE / TEST_STATEIDs with SEQUENCE Reply has SEQ4_STATUS_RECALLABLE_STATE_REVOKED set - NFS server should return NFS4ERR_DELEG_REVOKED or NFS4ERR_BAD_STATEID for revoked delegations

1553216 - CVE-2018-7755 kernel: Information exposure in fd_locked_ioctl function in drivers/block/floppy.c

1555145 - CVE-2018-8087 kernel: Memory leak in drivers/net/wireless/mac80211_hwsim.c:hwsim_new_radio_nl() can lead to potential denial of service

1577640 - getdents on cifs with 4k buffer loses files

1589890 - CVE-2018-10853 kernel: kvm: guest userspace to guest kernel write

1590228 - kernel: openat with O_TMPFILE and mode 0 fails with EACCES (if not root)

1593417 - [mm] kernel BUG at lib/idr.c:1157, kmemcg_id is -1 when creating or destroying mem cgroups

1597747 - CVE-2018-13053 kernel: Integer overflow in the alarm_timer_nsleep function

1597766 - CVE-2018-13093 kernel: NULL pointer dereference in lookup_slow function

1597771 - CVE-2018-13094 kernel: NULL pointer dereference in xfs_da_shrink_inode function

Read the Full Advisory

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