The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
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-2018-14613: Prevent invalid pointer dereference in ioctlmappage() when
mounting and operating a crafted btrfs image, caused by a lack of block group
item validation in checkleaf_item (bsc#1102896).
CVE-2018-10940: The cdromioctlmediachanged function allowed local
attackers to use a incorrect bounds check in the CDROM driver
CDROMMEDIA_CHANGED ioctl to read out kernel memory (bsc#1092903)
CVE-2018-13093: Prevent NULL pointer dereference and panic in lookupslow()
on a NULL inode->iops 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-2018-13094: Prevent OOPS that may have occured for a corrupted xfs image
after xfsdashrink_inode() is called with a NULL bp (bnc#1100000)
CVE-2018-13095: Prevent denial of service (memory corruption and BUG) that
could have occurred for a corrupted xfs image upon encountering an inode that
is in extent format, but has more extents than fit in the inode fork
(bnc#1099999)
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 INTMAX, but the accounting
is int based. This basically made the accounting values, which are visible to
user space via timergetoverrun(2) and siginfo::sioverrun, random. This
allowed a local user to cause a denial of service (signed integer overflow) via
crafted mmap, futex, timercreate, and timer_settime system calls (bnc#1099922)
CVE-2018-16658: Prevent information leak in cdromioctldrive_status that
could have been used by local attackers to read kernel memory (bnc#1107689)
CVE-2018-6555: The irdasetsockopt function allowed local users to cause a
denial of service (iasobject 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 irdabind function that allowed
local users to cause a denial of service (memory consumption) by repeatedly
binding an AFIRDA socket (bnc#1106509)
CVE-2018-1129: A flaw was found in the way signature calculation was handled
by cephx authentication protocol. An attacker having access to ceph cluster
network who is able to alter the message payload was able to bypass signature
checks done by cephx protocol (bnc#1096748)
CVE-2018-1128: It was found that cephx authentication protocol did not verify
ceph clients correctly and was vulnerable to replay attack. Any attacker having
access to ceph cluster network who is able to sniff packets on network can use
this vulnerability to authenticate with ceph service and perform actions
allowed by ceph service (bnc#1096748)
CVE-2018-10938: A crafted network packet sent remotely by an attacker forced
the kernel to enter an infinite loop in the cipsov4optptr() function leading
to a denial-of-service (bnc#1106016)
The following non-security bugs were fixed:
/dev/mem: Add bounce buffer for copy-out (git-fixes).
/dev/mem: Avoid overwriting 'err' in read_mem() (git-fixes).
9p/net: Fix zero-copy path in the 9p virtio transport (bsc#1051510).
9p/virtio: fix off-by-one error in sg list bounds check (bsc#1051510).