NetBSD up to 9.2 Pv6 Flow Label Generator entropy

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability was found in NetBSD up to 9.2. It has been declared as problematic. This affects an unknown function of the component Pv6 Flow Label Generator. Executing a manipulation can lead to entropy. This vulnerability is handled as CVE-2021-45489. The attack can be executed remotely. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability has been found in NetBSD up to 9.2 (Operating System) and classified as problematic. This vulnerability affects some unknown processing of the component Pv6 Flow Label Generator. The manipulation with an unknown input leads to a entropy vulnerability. The CWE definition for the vulnerability is CWE-332. The lack of entropy available for, or used by, a Pseudo-Random Number Generator (PRNG) can be a stability and security threat. As an impact it is known to affect confidentiality.

The weakness was released 12/25/2021. The advisory is shared for download at ftp.netbsd.org. This vulnerability was named CVE-2021-45489 since 12/25/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

Applying a patch is able to eliminate this problem.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
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: Entropy
CWE: CWE-332 / CWE-331 / CWE-330
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: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/25/2021 🔍
12/25/2021 +0 days 🔍
12/25/2021 +0 days 🔍
12/27/2021 +2 days 🔍

Sourcesinfo

Advisory: ftp.netbsd.org
Status: Confirmed

CVE: CVE-2021-45489 (🔍)
GCVE (CVE): GCVE-0-2021-45489
GCVE (VulDB): GCVE-100-189076

Entryinfo

Created: 12/25/2021 09:38
Updated: 12/27/2021 10:12
Changes: 12/25/2021 09:38 (38), 12/27/2021 10:12 (1)
Complete: 🔍
Cache ID: 216::103

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