Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2016-10197

Published: 31 December 2016

The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname.

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
upstream
Released (53.0)
xenial
Released (53.0+build6-0ubuntu0.16.04.1)
yakkety
Released (53.0+build6-0ubuntu0.16.10.1)
zesty
Released (53.0+build6-0ubuntu0.17.04.1)
precise Ignored

trusty
Released (53.0+build6-0ubuntu0.14.04.1)
thunderbird
Launchpad, Ubuntu, Debian
upstream Needs triage

xenial
Released (1:52.1.1+build1-0ubuntu0.16.04.1)
yakkety
Released (1:52.1.1+build1-0ubuntu0.16.10.1)
zesty
Released (1:52.1.1+build1-0ubuntu0.17.04.1)
trusty
Released (1:52.1.1+build1-0ubuntu0.14.04.1)
libevent
Launchpad, Ubuntu, Debian
upstream
Released (2.0.21-stable-3)
precise
Released (2.0.16-stable-1ubuntu0.2)
trusty
Released (2.0.21-stable-1ubuntu1.14.04.2)
xenial
Released (2.0.21-stable-2ubuntu0.16.04.1)
yakkety
Released (2.0.21-stable-2ubuntu0.16.10.1)
zesty
Released (2.0.21-stable-3)
Patches:
upstream: https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e
upstream: https://github.com/libevent/libevent/commit/d7348bab602cf4dbdf65b9eeba2fb9ce4646bc0b (test)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H