CVE-2016-5180

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.

References

Link	Tags
https://source.android.com/security/bulletin/2017-01-01.html
http://www.securityfocus.com/bid/93243	vdb entry
http://www.ubuntu.com/usn/USN-3143-1	vendor advisory
https://security.gentoo.org/glsa/201701-28	vendor advisory
http://www.debian.org/security/2016/dsa-3682	vendor advisory
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
http://rhn.redhat.com/errata/RHSA-2017-0002.html	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-5180?: CVE-2016-5180 has been scored as a critical severity vulnerability.
How to fix CVE-2016-5180?: To fix CVE-2016-5180, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5180 being actively exploited in the wild?: It is possible that CVE-2016-5180 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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Description

Category

CWE-787 – Out-of-bounds Write

References

Frequently Asked Questions