Mageia alert MGASA-2017-0466 (kernel-tmb)

From:
    	     
 
Mageia Updates <buildsystem-daemon@mageia.org> 
To:
    	     
 
updates-announce@ml.mageia.org 
Subject:
    	     
 
[updates-announce] MGASA-2017-0466: Updated kernel-tmb packages fix security vulnerabilities 
Date:
    	     
 
Fri, 22 Dec 2017 11:31:49 +0100
Message-ID:
    	     
 
<20171222103149.6BEAC9FA17@duvel.mageia.org>
MGASA-2017-0466 - Updated kernel-tmb packages fix security vulnerabilities

Publication date: 22 Dec 2017
URL: https://advisories.mageia.org/MGASA-2017-0466.html
Type: security
Affected Mageia releases: 5
CVE: CVE-2017-0786,
     CVE-2017-7518,
     CVE-2017-12190,
     CVE-2017-12193,
     CVE-2017-13080,
     CVE-2017-15115,
     CVE-2017-15265,
     CVE-2017-15299,
     CVE-2017-16939,
     CVE-2017-16994

Description:
This kernel-tmb update is based on upstream 4.4.105 and fixes atleast the
following security issues:

A security flaw was discovered in nl80211_set_rekey_data() function in the
Linux kernel since v3.1-rc1 through v4.13. This function does not check
whether the required attributes are present in a netlink request. This
request can be issued by a user with CAP_NET_ADMIN privilege and may result
in NULL dereference and a system crash (CVE-2017-12153).

Linux kernel built with the KVM visualization support (CONFIG_KVM), with
nested visualization (nVMX) feature enabled (nested=1), is vulnerable to a
crash due to disabled external interrupts. As L2 guest could acce s (r/w)
hardware CR8 register of the host(L0). In a nested visualization setup,
L2 guest user could use this flaw to potentially crash the host(L0)
resulting in DoS (CVE-2017-12154).

The tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before
4.12 allows local users to cause a denial of service (__tcp_select_window
divide-by-zero error and system crash) by triggering a disconnect within a
certain tcp_recvmsg code path (CVE-2017-14106).

The atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the
Linux kernel through 4.12.10 does not initialize a certain data structure,
which allows local users to obtain sensitive information from kernel stack
memory by reading locations associated with padding bytes (CVE-2017-14156).

It was found that the iscsi_if_rx() function in scsi_transport_iscsi.c in
the Linux kernel since v2.6.24-rc1 through 4.13.2 allows local users to
cause a denial of service (a system panic) by making a number of certain
syscalls by leveraging incorrect length validation in the kernel code
(CVE-2017-14489).

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4
allows local users to obtain sensitive information from uninitialized kernel
heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0
(CVE-2017-14991).

A reachable assertion failure flaw was found in the Linux kernel built with
KVM virtualisation(CONFIG_KVM) support with Virtual Function I/O feature
(CONFIG_VFIO) enabled. This failure could occur if a malicious guest device
sent a virtual interrupt (guest IRQ) with a larger (>1024) index value
(CVE-2017-1000252).

For other upstream fixes in this update, read the referenced changelogs.

References:
- https://bugs.mageia.org/show_bug.cgi?id=22179
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4....
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-0786
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7518
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1...

SRPMS:
- 5/core/kernel-tmb-4.4.105-1.mga5