VDB-171731 · CVE-2020-35502 · GCVE-0-2020-35502

Privoxy up to 3.0.28 Response Buffer memory leak

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Privoxy up to 3.0.28. It has been rated as problematic. Affected is an unknown function of the component Response Buffer Handler. The manipulation leads to memory leak. This vulnerability is documented as CVE-2020-35502. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Privoxy up to 3.0.28. This issue affects an unknown function of the component Response Buffer Handler. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability.

The weakness was released 03/26/2021. It is possible to read the advisory at bugzilla.redhat.com. The identification of this vulnerability is CVE-2020-35502. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 3.0.29 eliminates this vulnerability. The upgrade is hosted for download at privoxy.org.

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Productinfo

Name

Privoxy

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Privoxy 3.0.29

Timelineinfo

12/17/2020 🔍
03/26/2021 +99 days 🔍
03/26/2021 +0 days 🔍
04/05/2021 +10 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2020-35502 (🔍)
GCVE (CVE): GCVE-0-2020-35502
GCVE (VulDB): GCVE-100-171731

Entryinfo

Created: 03/26/2021 07:08
Updated: 04/05/2021 03:24
Changes: 03/26/2021 07:08 (38), 04/05/2021 03:17 (5), 04/05/2021 03:24 (18)
Complete: 🔍
Cache ID: 216::103