Bash: Arbitrary code execution A vulnerability in Bash could potentially lead to arbitrary code execution. bash 2016-12-13 2016-12-13 594496 remote 4.3_p46-r1 4.3_p46-r1

Bash is the standard GNU Bourne Again SHell.

A vulnerability was found in the way Bash expands $HOSTNAME. Injecting malicious code into $HOSTNAME could cause it to run each time Bash expands \h in the prompt string.

A remote attacker controlling the system’s hostname (i.e. via DHCP) could possibly execute arbitrary code with the privileges of the process, or cause a Denial of Service condition.

There is no known workaround at this time.

All Bash users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=app-shells/bash-4.3_p46-r1"
CVE-2016-0634 BlueKnight whissi