PT-2021-13844

CVE-2021-20213

Published

2021-01-22

Updated

2026-10-31

Description by

CVSS 3.1

7.5

High

MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions: Privoxy versions prior to 3.0.29

Description: A flaw was found that could result in a crash if accept-intercepted-requests was enabled. This occurs when Privoxy fails to get the request destination from the Host header and a memory allocation fails.

Recommendations: For versions prior to 3.0.29, update to version 3.0.29 or later to resolve the issue. As a temporary workaround, consider disabling the accept-intercepted-requests feature until a patch is available.

Exploitability

Fix

Impacts

Researchers

Msiddiqu

Vendors

Affected products

Weakness enumeration

CWE-476: NULL Pointer Dereference

Related identifiers

CVE-2021-20213

ALT-PU-2021-1116