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-2017-14496

Publication date 2 October 2017

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.

Status

Package Ubuntu Release Status
dnsmasq 17.04 zesty
Fixed 2.76-5ubuntu0.1
16.04 LTS xenial
Fixed 2.75-1ubuntu0.16.04.3
14.04 LTS trusty
Fixed 2.68-1ubuntu0.2

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)

    • USN-3430-1
    • Dnsmasq vulnerabilities
    • 2 October 2017
    • USN-3430-2
    • Dnsmasq vulnerabilities
    • 3 October 2017

Other references