Advisories » MGASA-2019-0221

Updated kernel packages fix security vulnerabilities

Publication date: 12 Aug 2019
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 at least
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

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.