CVE-2019-19330 describes a critical vulnerability in HAProxy's HTTP/2 implementation, affecting versions prior to 2.0.10, including various Canonical and Debian distributions. This flaw, known as Intermediary Encapsulation Attacks, stems from improper handling of special characters like carriage return, line feed, and null in HTTP/2 headers. With a CVSS score of 9.8 (Critical), it presents a severe risk due to its network-based attack vector, low attack complexity, and potential for high impact on confidentiality, integrity, and availability. While no active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion has been observed, the vulnerability's high FAUCET Risk Score of 80/100 warrants immediate attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.0.10CPE matchmatch criteria | cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* | ||
18.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | ||
19.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* | ||
19.10CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.