Debian: DSA-3927-1: linux security update
Summary
CVE-2017-7346
Li Qiang discovered that the DRM driver for VMware virtual GPUs does
not properly check user-controlled values in the
vmw_surface_define_ioctl() functions for upper limits. A local user
can take advantage of this flaw to cause a denial of service.
CVE-2017-7482
Shi Lei discovered that RxRPC Kerberos 5 ticket handling code does
not properly verify metadata, leading to information disclosure,
denial of service or potentially execution of arbitrary code.
CVE-2017-7533
Fan Wu and Shixiong Zhao discovered a race condition between inotify
events and VFS rename operations allowing an unprivileged local
attacker to cause a denial of service or escalate privileges.
CVE-2017-7541
A buffer overflow flaw in the Broadcom IEEE802.11n PCIe SoftMAC WLAN
driver could allow a local user to cause kernel memory corruption,
leading to a denial of service or potentially privilege escalation.
CVE-2017-7542
An integer overflow vulnerability in the ip6_find_1stfragopt()
function was found allowing a local attacker with privileges to open
raw sockets to cause a denial of service.
CVE-2017-9605
Murray McAllister discovered that the DRM driver for VMware virtual
GPUs does not properly initialize memory, potentially allowing a
local attacker to obtain sensitive information from uninitialized
kernel memory via a crafted ioctl call.
CVE-2017-10810
Li Qiang discovered a memory leak flaw within the VirtIO GPU driver
resulting in denial of service (memory consumption).
CVE-2017-10911 / XSA-216
Anthony Perard of Citrix discovered an information leak flaw in Xen
blkif response handling, allowing a malicious unprivileged guest to
obtain sensitive information from the host or other guests.
CVE-2017-11176
It was discovered that the mq_notify() function does not set the
sock pointer to NULL upon entry into the retry logic. An attacker
can take advantage of this flaw during a user-space close of a
Netlink socket to cause a denial of service or potentially cause
other impact.
CVE-2017-1000365
It was discovered that argument and environment pointers are not
taken properly into account to the imposed size restrictions on
arguments and environmental strings passed through
RLIMIT_STACK/RLIMIT_INFINITY. A local attacker can take advantage of
this flaw in conjunction with other flaws to execute arbitrary code.
For the oldstable distribution (jessie), these problems will be fixed in
a subsequent DSA.
For the stable distribution (stretch), these problems have been fixed in
version 4.9.30-2+deb9u3.
We recommend that you upgrade your linux packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
