CVE-2017-13704 is a critical denial-of-service vulnerability in dnsmasq versions prior to 2.78, affecting various Linux distributions and devices utilizing dnsmasq, including Canonical, Debian, Fedora, Novell, Red Hat, and TheKelleys products. This flaw, rated 7.5 HIGH, allows an unauthenticated attacker to crash dnsmasq by sending a specially crafted DNS packet that causes a negative value to be interpreted as a large unsigned integer in a memset call, leading to a buffer overflow. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion and media coverage, indicating high awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | ||
17.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:17.04:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | ||
7.1CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.