CVE-2017-16944 describes a denial-of-service vulnerability in the receive_msg function of the Exim SMTP daemon, versions 4.88 and 4.89. This flaw allows remote attackers to trigger an infinite loop and stack exhaustion via crafted BDAT commands. The vulnerability is rated as high severity (CVSS 7.5) due to its network-based attack vector, low attack complexity, and high impact on availability. While not listed on the KEV catalog, public exploit code exists (EDB-43184), and it has garnered significant community discussion and media coverage, indicating a high level of awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.88CPE matchmatch criteria | cpe:2.3:a:exim:exim:4.88:*:*:*:*:*:*:* | ||
4.89CPE matchmatch criteria | cpe:2.3:a:exim:exim:4.89:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
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.