SUSE-SU-2018:3083-1: important: Security update for the Linux Kernel
sle-security-updates at lists.suse.com
sle-security-updates at lists.suse.com
Tue Oct 9 10:08:12 MDT 2018
SUSE Security Update: Security update for the Linux Kernel
______________________________________________________________________________
Announcement ID: SUSE-SU-2018:3083-1
Rating: important
References: #1012382 #1062604 #1064232 #1065999 #1092903
#1093215 #1096547 #1097104 #1099811 #1099813
#1099844 #1099845 #1099846 #1099849 #1099863
#1099864 #1099922 #1100001 #1100089 #1102870
#1103445 #1104319 #1104495 #1104906 #1105322
#1105412 #1106095 #1106369 #1106509 #1106511
#1107689 #1108399 #1108912
Cross-References: CVE-2018-10853 CVE-2018-10876 CVE-2018-10877
CVE-2018-10878 CVE-2018-10879 CVE-2018-10880
CVE-2018-10881 CVE-2018-10882 CVE-2018-10883
CVE-2018-10902 CVE-2018-10940 CVE-2018-12896
CVE-2018-13093 CVE-2018-14617 CVE-2018-14634
CVE-2018-16276 CVE-2018-16658 CVE-2018-17182
CVE-2018-6554 CVE-2018-6555
Affected Products:
SUSE Linux Enterprise Server 12-LTSS
SUSE Linux Enterprise Module for Public Cloud 12
______________________________________________________________________________
An update that solves 20 vulnerabilities and has 13 fixes
is now available.
Description:
The SUSE Linux Enterprise 12 kernel was updated to receive various
security and bugfixes.
The following security bugs were fixed:
- CVE-2018-14634: Prevent integer overflow in create_elf_tables that
allowed a local attacker to exploit this vulnerability via a SUID-root
binary and obtain full root privileges (bsc#1108912)
- CVE-2018-14617: Prevent NULL pointer dereference and panic in
hfsplus_lookup() when opening a file (that is purportedly a hard link)
in an hfs+ filesystem that has malformed catalog data, and is mounted
read-only without a metadata directory (bsc#1102870)
- CVE-2018-16276: Incorrect bounds checking in the yurex USB driver in
yurex_read allowed local attackers to use user access read/writes to
crash the kernel or potentially escalate privileges (bsc#1106095)
- CVE-2018-12896: Prevent integer overflow in the POSIX timer code that
was 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 made the accounting
values, which are visible to user space via timer_getoverrun(2) and
siginfo::si_overrun, random. This allowed a local user to cause a denial
of service (signed integer overflow) via crafted mmap, futex,
timer_create, and timer_settime system calls (bnc#1099922)
- CVE-2018-13093: Prevent NULL pointer dereference and panic in
lookup_slow()
on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs
image. This occured because of a lack of proper validation that cached
inodes are free during allocation (bnc#1100001)
- CVE-2018-10940: The cdrom_ioctl_media_changed function allowed local
attackers to use a incorrect bounds check in the CDROM driver
CDROM_MEDIA_CHANGED ioctl to read out kernel memory (bsc#1092903)
- CVE-2018-16658: Prevent information leak in cdrom_ioctl_drive_status
that could have been used by local attackers to read kernel memory
(bnc#1107689)
- CVE-2018-6555: The irda_setsockopt function allowed local users to cause
a denial of service (ias_object use-after-free and system crash) or
possibly have unspecified other impact via an AF_IRDA socket
(bnc#1106511)
- CVE-2018-6554: Prevent memory leak in the irda_bind function that
allowed local users to cause a denial of service (memory consumption) by
repeatedly binding an AF_IRDA socket (bnc#1106509)
- CVE-2018-10853: The KVM hypervisor did not check current privilege(CPL)
level while emulating unprivileged instructions. An unprivileged guest
user/process could have used this flaw to potentially escalate
privileges inside guest (bsc#1097104)
- CVE-2018-10902: Protect against concurrent access to prevent double
realloc (double free) in snd_rawmidi_input_params() and
snd_rawmidi_output_status(). A malicious local attacker could have used
this for privilege escalation (bnc#1105322).
- CVE-2018-10879: A local user could have caused a use-after-free in
ext4_xattr_set_entry function and a denial of service or unspecified
other impact by renaming a file in a crafted ext4 filesystem image
(bsc#1099844)
- CVE-2018-10883: A local user could have caused an out-of-bounds write in
jbd2_journal_dirty_metadata(), a denial of service, and a system crash
by mounting and operating on a crafted ext4 filesystem image
(bsc#1099863)
- CVE-2018-10880: Prevent stack-out-of-bounds write in the ext4 filesystem
code when mounting and writing to a crafted ext4 image in
ext4_update_inline_data(). An attacker could have used this to cause a
system crash and a denial of service (bsc#1099845)
- CVE-2018-10882: A local user could have caused an out-of-bound write, a
denial of service, and a system crash by unmounting a crafted ext4
filesystem image (bsc#1099849)
- CVE-2018-10881: A local user could have caused an out-of-bound access in
ext4_get_group_info function, a denial of service, and a system crash by
mounting and operating on a crafted ext4 filesystem image (bsc#1099864)
- CVE-2018-10877: Prevent out-of-bound access in the ext4_ext_drop_refs()
function when operating on a crafted ext4 filesystem image (bsc#1099846)
- CVE-2018-10876: A use-after-free was possible in ext4_ext_remove_space()
function when mounting and operating a crafted ext4 image (bsc#1099811)
- CVE-2018-10878: A local user could have caused an out-of-bounds write
and a denial of service or unspecified other impact by mounting and
operating a crafted ext4 filesystem image (bsc#1099813)
- CVE-2018-17182: An issue was discovered in the Linux kernel The
vmacache_flush_all function in mm/vmacache.c mishandled sequence number
overflows. An attacker can trigger a use-after-free (and possibly gain
privileges) via certain thread creation, map, unmap, invalidation, and
dereference operations (bnc#1108399).
The following non-security bugs were fixed:
- bcache: avoid unncessary cache prefetch bch_btree_node_get().
- bcache: calculate the number of incremental GC nodes according to the
total of btree nodes.
- bcache: display rate debug parameters to 0 when writeback is not running.
- bcache: do not check return value of debugfs_create_dir().
- bcache: finish incremental GC.
- bcache: fix error setting writeback_rate through sysfs interface
(bsc#1064232).
- bcache: fix I/O significant decline while backend devices registering.
- bcache: free heap cache_set->flush_btree in bch_journal_free.
- bcache: make the pr_err statement used for ENOENT only in sysfs_attatch
section.
- bcache: release dc->writeback_lock properly in bch_writeback_thread().
- bcache: set max writeback rate when I/O request is idle (bsc#1064232).
- bcache: simplify the calculation of the total amount of flash dirty data.
- Do not report CPU affected by L1TF when ARCH_CAP_RDCL_NO bit is set
(bsc#1104906).
- ext4: check for allocation block validity with block group locked
(bsc#1104495).
- ext4: do not update checksum of new initialized bitmaps (bnc#1012382).
- ext4: fix check to prevent initializing reserved inodes (bsc#1104319).
- ext4: fix false negatives *and* false positives in
ext4_check_descriptors() (bsc#1103445).
- kABI: protect struct x86_emulate_ops (kabi).
- KEYS: prevent creating a different user's keyrings (bnc#1065999).
- KVM: MMU: always terminate page walks at level 1 (bsc#1062604).
- KVM: MMU: simplify last_pte_bitmap (bsc#1062604).
- KVM: nVMX: update last_nonleaf_level when initializing nested EPT
(bsc#1062604).
- KVM: VMX: fixes for vmentry_l1d_flush module parameter (bsc#1106369).
- KVM: VMX: Work around kABI breakage in 'enum vmx_l1d_flush_state'
(bsc#1106369).
- updated sssbd handling (bsc#1093215, bsc#1105412).
- usbip: vhci_sysfs: fix potential Spectre v1 (bsc#1096547).
- x86/speculation: Use ARCH_CAPABILITIES to skip L1D flush on vmentry
(bsc#1106369).
- sched/sysctl: Check user input value of sysctl_sched_time_avg
(bsc#1100089).
Special Instructions and Notes:
Please reboot the system after installing this update.
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- SUSE Linux Enterprise Server 12-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-2018-2185=1
- SUSE Linux Enterprise Module for Public Cloud 12:
zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2018-2185=1
Package List:
- SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):
kernel-default-3.12.61-52.146.1
kernel-default-base-3.12.61-52.146.1
kernel-default-base-debuginfo-3.12.61-52.146.1
kernel-default-debuginfo-3.12.61-52.146.1
kernel-default-debugsource-3.12.61-52.146.1
kernel-default-devel-3.12.61-52.146.1
kernel-syms-3.12.61-52.146.1
- SUSE Linux Enterprise Server 12-LTSS (x86_64):
kernel-xen-3.12.61-52.146.1
kernel-xen-base-3.12.61-52.146.1
kernel-xen-base-debuginfo-3.12.61-52.146.1
kernel-xen-debuginfo-3.12.61-52.146.1
kernel-xen-debugsource-3.12.61-52.146.1
kernel-xen-devel-3.12.61-52.146.1
kgraft-patch-3_12_61-52_146-default-1-1.5.1
kgraft-patch-3_12_61-52_146-xen-1-1.5.1
- SUSE Linux Enterprise Server 12-LTSS (noarch):
kernel-devel-3.12.61-52.146.1
kernel-macros-3.12.61-52.146.1
kernel-source-3.12.61-52.146.1
- SUSE Linux Enterprise Server 12-LTSS (s390x):
kernel-default-man-3.12.61-52.146.1
- SUSE Linux Enterprise Module for Public Cloud 12 (x86_64):
kernel-ec2-3.12.61-52.146.1
kernel-ec2-debuginfo-3.12.61-52.146.1
kernel-ec2-debugsource-3.12.61-52.146.1
kernel-ec2-devel-3.12.61-52.146.1
kernel-ec2-extra-3.12.61-52.146.1
kernel-ec2-extra-debuginfo-3.12.61-52.146.1
References:
https://www.suse.com/security/cve/CVE-2018-10853.html
https://www.suse.com/security/cve/CVE-2018-10876.html
https://www.suse.com/security/cve/CVE-2018-10877.html
https://www.suse.com/security/cve/CVE-2018-10878.html
https://www.suse.com/security/cve/CVE-2018-10879.html
https://www.suse.com/security/cve/CVE-2018-10880.html
https://www.suse.com/security/cve/CVE-2018-10881.html
https://www.suse.com/security/cve/CVE-2018-10882.html
https://www.suse.com/security/cve/CVE-2018-10883.html
https://www.suse.com/security/cve/CVE-2018-10902.html
https://www.suse.com/security/cve/CVE-2018-10940.html
https://www.suse.com/security/cve/CVE-2018-12896.html
https://www.suse.com/security/cve/CVE-2018-13093.html
https://www.suse.com/security/cve/CVE-2018-14617.html
https://www.suse.com/security/cve/CVE-2018-14634.html
https://www.suse.com/security/cve/CVE-2018-16276.html
https://www.suse.com/security/cve/CVE-2018-16658.html
https://www.suse.com/security/cve/CVE-2018-17182.html
https://www.suse.com/security/cve/CVE-2018-6554.html
https://www.suse.com/security/cve/CVE-2018-6555.html
https://bugzilla.suse.com/1012382
https://bugzilla.suse.com/1062604
https://bugzilla.suse.com/1064232
https://bugzilla.suse.com/1065999
https://bugzilla.suse.com/1092903
https://bugzilla.suse.com/1093215
https://bugzilla.suse.com/1096547
https://bugzilla.suse.com/1097104
https://bugzilla.suse.com/1099811
https://bugzilla.suse.com/1099813
https://bugzilla.suse.com/1099844
https://bugzilla.suse.com/1099845
https://bugzilla.suse.com/1099846
https://bugzilla.suse.com/1099849
https://bugzilla.suse.com/1099863
https://bugzilla.suse.com/1099864
https://bugzilla.suse.com/1099922
https://bugzilla.suse.com/1100001
https://bugzilla.suse.com/1100089
https://bugzilla.suse.com/1102870
https://bugzilla.suse.com/1103445
https://bugzilla.suse.com/1104319
https://bugzilla.suse.com/1104495
https://bugzilla.suse.com/1104906
https://bugzilla.suse.com/1105322
https://bugzilla.suse.com/1105412
https://bugzilla.suse.com/1106095
https://bugzilla.suse.com/1106369
https://bugzilla.suse.com/1106509
https://bugzilla.suse.com/1106511
https://bugzilla.suse.com/1107689
https://bugzilla.suse.com/1108399
https://bugzilla.suse.com/1108912
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