CVE-2021-20214

HIGH

Privoxy < 3.0.29 - Denial of Service via Client-Tags CGI Handler Memory Leak

Title source: llm

Description

A flaw was found in Privoxy in versions before 3.0.29. Memory leaks in the client-tags CGI handler when client tags are configured and memory allocations fail can lead to a system crash.

References (3)

Core 3

Core References

Release Notes, Vendor Advisory x_refsource_misc

https://www.privoxy.org/3.0.29/user-manual/whatsnew.html

Issue Tracking, Patch, Third Party Advisory x_refsource_misc

https://bugzilla.redhat.com/show_bug.cgi?id=1928742

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202107-16

Scores

CVSS v3 7.5

EPSS 0.0202

EPSS Percentile 78.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE

CWE-401

Status published

Products (1)

privoxy/privoxy < 3.0.29

Published Mar 25, 2021

Tracked Since Feb 18, 2026