This script is Copyright (C) 2017 Tenable Network Security, Inc.
The remote Gentoo host is missing one or more security-related
The remote host is affected by the vulnerability described in GLSA-201701-28
(c-ares: Heap-based buffer overflow)
A hostname with an escaped trailing dot (such as “hello\\.”) would
have its size calculated incorrectly leading to a single byte written
beyond the end of a buffer on the heap.
A remote attacker, able to provide a specially crafted hostname to an
application using c-ares, could potentially cause a Denial of Service
There is no known workaround at this time.
See also :
All c-ares users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-dns/c-ares-1.12.0'
Risk factor :
High / CVSS Base Score : 7.5