MGASA-2019-0221 - Updated kernel packages fix security vulnerabilities

Publication date: 12 Aug 2019
URL: https://advisories.mageia.org/MGASA-2019-0221.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2019-1125,
     CVE-2019-3846,
     CVE-2019-3900,
     CVE-2019-10207

This kernel update is based on the upstream 4.14.137 and fixes atleast
the following security issues:

A Spectre SWAPGS gadget was found in the Linux kernel's implementation of
system interrupts. An attacker with local access could use this information
to reveal private data through a Spectre like side channel (CVE-2019-1125).

A flaw that allowed an attacker to corrupt memory and possibly escalate
privileges was found in the mwifiex kernel module while connecting to a
malicious wireless network (CVE-2019-3846). 

An infinite loop issue was found in the vhost_net kernel module in Linux
Kernel up to and including v5.1-rc6, while handling incoming packets in
handle_rx(). It could occur if one end sends packets faster than the other
end can process them. A guest user, maybe remote one, could use this flaw
to stall the vhost_net kernel thread, resulting in a DoS scenario
(CVE-2019-3900). 

A flaw was found in the Linux kernel’s Bluetooth implementation of UART.
An attacker with local access and write permissions to the Bluetooth
hardware could use this flaw to issue a specially crafted ioctl function
call and cause the system to crash (CVE-2019-10207).

WireGuard has been updated to 0.0.20190702.

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

References:
- https://bugs.mageia.org/show_bug.cgi?id=25239
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.132
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.133
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.134
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.135
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.136
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.137
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1125
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3846
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3900
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10207

SRPMS:
- 6/core/kernel-4.14.137-1.mga6
- 6/core/kernel-userspace-headers-4.14.137-1.mga6
- 6/core/kmod-vboxadditions-6.0.10-2.mga6
- 6/core/kmod-virtualbox-6.0.10-2.mga6
- 6/core/kmod-xtables-addons-2.13-90.mga6
- 6/core/wireguard-tools-0.0.20190702-1.mga6