CVE-2021-20212

CVSS V2 High 7.8 CVSS V3 High 7.5

Description

A flaw was found in Privoxy in versions before 3.0.29. Memory leak if multiple filters are executed and the last one is skipped due to a pcre error leading to a system crash.

Overview

CVE ID
CVE-2021-20212

Assigner
secalert@redhat.com

Vulnerability Status
Analyzed

Published Version
2021-03-25T19:15:12

Last Modified Date
2021-12-14T20:15:31

Weakness Enumerations

CWE	URL
CWE-401	http://cwe.mitre.org/data/definitions/401.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:privoxy:privoxy::::::::	1	OR		3.0.29

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:N/C:N/I:N/A:C

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
NONE

Integrity Impact
NONE

Availability Impact
COMPLETE

Base Score
7.8

Severity
HIGH

Exploitability Score
10

Impact Score
6.9

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
NONE

Availability Impact
HIGH

Base Score
7.5

Base Severity
HIGH

Exploitability Score
3.9

Impact Score
3.6

References

Reference URL	Reference Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1928736	Issue Tracking Patch Third Party Advisory
https://www.privoxy.org/3.0.29/user-manual/whatsnew.html	Release Notes Vendor Advisory
https://security.gentoo.org/glsa/202107-16	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-20212
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20212

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:41:22				Added to TrackCVE
2022-12-06 00:25:55	2021-03-25T19:15Z	2021-03-25T19:15:12	CVE Published Date	updated
2022-12-06 00:25:55		2021-12-14T20:15:31	CVE Modified Date	updated
2022-12-06 00:25:55		Analyzed	Vulnerability Status	updated