CVE-2016-5180 Information

Description

Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://rhn.redhat.com/errata/RHSA-2017-0002.html http://www.debian.org/security/2016/dsa-3682 http://www.securityfocus.com/bid/93243 http://www.ubuntu.com/usn/USN-3143-1 https://c-ares.haxx.se/adv_20160929.html https://c-ares.haxx.se/CVE-2016-5180.patch https://googlechromereleases.blogspot.in/2016/09/stable-channel-updates-for-chrome-os.html https://security.gentoo.org/glsa/201701-28 https://source.android.com/security/bulletin/2017-01-01.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8