Security
Security
A vulnerability in Bash could potentially lead to arbitrary code execution.
| Package | app-shells/bash on all architectures |
|---|---|
| Affected versions | < 4.3_p46-r1 |
| Unaffected versions | >= 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"
Release date
December 13, 2016
Latest revision
December 13, 2016: 2
Severity
normal
Exploitable
remote
Bugzilla entries