PT-2021-13844 · Privoxy+3 · Privoxy+3

Msiddiqu · Published 2021-01-22 · Updated 2024-10-14 · CVE-2021-20213

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV: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.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2021-1116

ALT-PU-2024-13795

CVE-2021-20213

DLA-2548-1

USN-4886-1

Affected Products

Alt Linux

Linuxmint

Privoxy

Ubuntu

References · 30

• https://osv.dev/vulnerability/CVE-2021-20213 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-20213 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2021-20213 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-20213 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4886-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20272 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-35502 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20211 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20214 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20209 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20273 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1928739 · Patch
• https://security.gentoo.org/glsa/202107-16 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2548-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-20275 · Vendor Advisory