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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