From: [email protected]

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- ------------------------------------------------------------------------- Debian Security Advisory DSA-3927-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso August 07, 2017 https://www.debian.org/security/faq
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Package : linux
CVE ID : CVE-2017-7346 CVE-2017-7482 CVE-2017-7533 CVE-2017-7541
CVE-2017-7542 CVE-2017-9605 CVE-2017-10810 CVE-2017-10911
CVE-2017-11176 CVE-2017-1000365

Several vulnerabilities have been discovered in the Linux kernel that
may lead to a privilege escalation, denial of service or information
leaks.

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: [email protected]
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