Privoxy up to 3.0.31 chunked_body_is_complete memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Privoxy up to 3.0.31. It has been classified as critical. Affected by this issue is the function chunked_body_is_complete. This manipulation causes memory corruption. This vulnerability is registered as CVE-2021-20275. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Privoxy up to 3.0.31. Affected by this vulnerability is the function chunked_body_is_complete. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability.

The weakness was published 03/10/2021. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2021-20275. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 3.0.32 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

License

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

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Privoxy 3.0.32

Timelineinfo

12/17/2020 🔍
03/10/2021 +83 days 🔍
03/10/2021 +0 days 🔍
03/29/2021 +19 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2021-20275 (🔍)
GCVE (CVE): GCVE-0-2021-20275
GCVE (VulDB): GCVE-100-170875

Entryinfo

Created: 03/10/2021 09:47
Updated: 03/29/2021 15:09
Changes: 03/10/2021 09:47 (37), 03/29/2021 15:05 (5), 03/29/2021 15:09 (18)
Complete: 🔍
Cache ID: 216::103

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