CVE-2021-20214 describes a memory leak vulnerability in Privoxy versions prior to 3.0.29. This flaw, specifically within the client-tags CGI handler, can lead to a system crash if client tags are configured and memory allocation fails. With a CVSS score of 7.5 (High), it presents a remote, low-complexity attack vector that can cause high availability impact without requiring user interaction or privileges. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.0.29CPE matchmatch criteria | cpe:2.3:a:privoxy:privoxy:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.