dns-packet up to 5.2.1 buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in dns-packet up to 5.2.1. It has been classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation leads to buffer overflow. This vulnerability is traded as CVE-2021-23386. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in dns-packet up to 5.2.1. This issue affects an unknown code block. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability.

The weakness was shared 05/21/2021 as SNYK-JS-DNSPACKET-1293563. It is possible to read the advisory at snyk.io. The identification of this vulnerability is CVE-2021-23386. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 5.2.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / 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: dns-packet 5.2.2
Patch: github.com

Timelineinfo

01/08/2021 🔍
05/21/2021 +132 days 🔍
05/21/2021 +0 days 🔍
05/23/2021 +2 days 🔍

Sourcesinfo

Advisory: SNYK-JS-DNSPACKET-1293563
Status: Confirmed

CVE: CVE-2021-23386 (🔍)
GCVE (CVE): GCVE-0-2021-23386
GCVE (VulDB): GCVE-100-175439

Entryinfo

Created: 05/21/2021 07:45
Updated: 05/23/2021 10:08
Changes: 05/21/2021 07:45 (38), 05/23/2021 10:04 (5), 05/23/2021 10:08 (1)
Complete: 🔍
Cache ID: 216::103

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