| Description: | Summary:
The remote host is missing an update for the Huawei EulerOS 'kernel' package(s) announced via the EulerOS-SA-2019-1492 advisory.
Vulnerability Insight:
The snd_timer_interrupt function in sound/core/timer.c in the Linux kernel before 4.4.1 does not properly maintain a certain linked list, which allows local users to cause a denial of service (race condition and system crash) via a crafted ioctl call.(CVE-2016-2545)
sound/core/timer.c in the Linux kernel before 4.4.1 uses an incorrect type of mutex, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.(CVE-2016-2546)
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.(CVE-2016-2547)
sound/core/timer.c in the Linux kernel before 4.4.1 retains certain linked lists after a close or stop action, which allows local users to cause a denial of service (system crash) via a crafted ioctl call, related to the (1) snd_timer_close and (2) _snd_timer_stop functions.(CVE-2016-2548)
sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service (deadlock) via a crafted ioctl call.(CVE-2016-2549)
A resource-exhaustion vulnerability was found in the kernel, where an unprivileged process could allocate and accumulate far more file descriptors than the process' limit. A local, unauthenticated user could exploit this flaw by sending file descriptors over a Unix socket and then closing them to keep the process' fd count low, thereby creating kernel-memory or file-descriptors exhaustion (denial of service).(CVE-2016-2550)
It is possible for a single process to cause an OOM condition by filling large pipes with data that are never read. A typical process filling 4096 pipes with 1 MB of data will use 4 GB of memory and there can be multiple such processes, up to a per-user-limit.(CVE-2016-2847)
A security flaw was found in the Linux kernel that an attempt to move page mapped by AIO ring buffer to the other node triggers NULL pointer dereference at trace_writeback_dirty_page(), because aio_fs_backing_dev_info.dev is 0.(CVE-2016-3070)
A security flaw was found in the Linux kernel in the mark_source_chains() function in 'net/ipv4/netfilter/ip_tables.c'. It is possible for a user-supplied 'ipt_entry' structure to have a large 'next_offset' field. This field is not bounds checked prior to writing to a counter value at the supplied offset.(CVE-2016-3134)
An integer overflow vulnerability was found in the Linux kernel in xt_alloc_table_info, which on 32-bit systems can lead to small structure allocation and a copy_from_user based heap corruption.(CVE-2016-3135)
The mct_u232_msr_to_state function in drivers/usb/serial/mct_u232.c in the Linux kernel before 4.5.1 allows physically proximate attackers to cause a denial of service ... [Please see the references for more information on the vulnerabilities]
Affected Software/OS:
'kernel' package(s) on Huawei EulerOS Virtualization 3.0.1.0.
Solution:
Please install the updated package(s).
CVSS Score:
10.0
CVSS Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C
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