CVE-2015-8899

Publication date 31 December 2015

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

Dnsmasq before 2.76 allows remote servers to cause a denial of service (crash) via a reply with an empty DNS address that has an (1) A or (2) AAAA record defined locally.

Read the notes from the security team

Status

Package Ubuntu Release Status
dnsmasq 16.04 LTS xenial
Fixed 2.75-1ubuntu0.16.04.1
15.10 wily
Fixed 2.75-1ubuntu0.15.10.1
14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected

Notes

mdeslaur

introduced in 2.73

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
dnsmasq

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references