CVE-2017-14495

Public on 2017-10-02
Modified on 2019-07-22
Description
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a 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 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H