Mageia alert MGASA-2016-0411 (kernel-linus-4.4.32)

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Mageia Updates <buildsystem-daemon@mageia.org> 
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updates-announce@ml.mageia.org 
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[updates-announce] MGASA-2016-0411: Updated kernel-linus-4.4.32 packages fix security vulnerability 
Date:
    	     
 
Wed, 7 Dec 2016 12:49:05 +0100
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<20161207114905.910DF9F7AD@duvel.mageia.org>
MGASA-2016-0411 - Updated kernel-linus-4.4.32 packages fix security vulnerability

Publication date: 07 Dec 2016
URL: http://advisories.mageia.org/MGASA-2016-0411.html
Type: security
Affected Mageia releases: 5
CVE: CVE-2016-7039,
     CVE-2016-7042,
     CVE-2016-7425,
     CVE-2016-8630,
     CVE-2016-8633

Description:
This update is based on upstream 4.4.32 and fixes alteast the following
security issues:

Vladimir Bene discovered an unbounded recursion in the VLAN and TEB
Generic Receive Offload (GRO) processing implementations in the Linux
kernel, A remote attacker could use this to cause a stack corruption,
leading to a denial of service (system crash). (CVE-2016-7039)

The proc_keys_show function in security/keys/proc.c in the Linux kernel
through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is
enabled, uses an incorrect buffer size for certain timeout data, which
allows local users to cause a denial of service (stack memory corruption
and panic) by reading the /proc/keys file (CVE-2016-7042).

The arcmsr_iop_message_xfer function in drivers/scsi/arcmsr/arcmsr_hba.c
in the Linux kernel through 4.8.2 does not restrict a certain length
field, which allows local users to gain privileges or cause a denial of
service (heap-based buffer overflow) via an ARCMSR_MESSAGE_WRITE_WQBUFFER
control code (CVE-2016-7425).

Null pointer dereference in kvm/emulate.c (CVE-2016-8630).

A buffer overflow vulnerability due to a lack of input filtering of
incoming fragmented datagrams was found in the IP-over-1394 driver
[firewire-net] in a fragment handling code in the Linux kernel. A
maliciously formed fragment with a respectively large datagram offset
would cause a memcpy() past the datagram buffer, which would cause a
system panic or possible arbitrary code execution. The flaw requires
[firewire-net] module to be loaded and is remotely exploitable from
connected firewire devices, but not over a local network (CVE-2016-8633).

For other fixes in this update, see the referenced changelogs.

References:
- https://bugs.mageia.org/show_bug.cgi?id=19794
- 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....
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7039
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7042
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7425
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8630
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8633

SRPMS:
- 5/core/kernel-linus-4.4.32-1.mga5