SUSE SLES12 Security Update : kernel (SUSE-SU-2018:2908-1)

High Nessus Plugin ID 117824

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The SUSE Linux Enterprise 12 SP1 kernel was updated 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-2018-10902: 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-2018-10853: 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).

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.

Solution

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-SP1-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-SP1-2018-2063=1

SUSE Linux Enterprise Module for Public Cloud 12:zypper in -t patch
SUSE-SLE-Module-Public-Cloud-12-2018-2063=1

CPE: p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debuginfo, p-cpe:/a:novell:suse_linux:kernel-default-debugsource, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kernel-xen, p-cpe:/a:novell:suse_linux:kernel-xen-base, p-cpe:/a:novell:suse_linux:kernel-xen-base-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debuginfo, p-cpe:/a:novell:suse_linux:kernel-xen-debugsource, p-cpe:/a:novell:suse_linux:kernel-xen-devel, cpe:/o:novell:suse_linux:12

Patch Publication Date: 2018/09/27

Reference Information

CVE: 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-2018-6554, CVE-2018-6555

SUSE SLES12 Security Update : kernel (SUSE-SU-2018:2908-1)

Synopsis

Description

Solution

See Also

Plugin Details

Risk Information

CVSS v2.0

CVSS v3.0

Vulnerability Information

Reference Information