CVE-2021-33833 is a critical stack-based buffer overflow vulnerability affecting ConnMan versions 1.30 through 1.39, specifically within the uncompress function in dnsproxy.c. This flaw can be triggered via malformed NAME, RDATA, or RDLENGTH fields for A or AAAA records, impacting products like Debian and Intel Connection Manager. With a CVSS score of 9.8, it presents a severe risk, allowing unauthenticated attackers to achieve complete compromise of confidentiality, integrity, and availability over the network with low attack complexity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 1.30, <= 1.39CPE matchmatch criteria | cpe:2.3:a:intel:connection_manager:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
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
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.