CVE-2017-14496

Public on 2017-10-02
Modified on 2019-07-22
Description
An integer underflow flaw leading to a buffer over-read was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets to dnsmasq which would cause it to crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet.
Severity
Important
CVSS v3 Base Score
7.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 dnsmasq 2019-07-18 18:22 ALAS2-2019-1251
Amazon Linux 1 dnsmasq 2017-10-02 17:05 ALAS-2017-907

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
Amazon Linux CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
NVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H