NetBSD up to 9.2 IPv6 Fragment ID 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 has been found in NetBSD up to 9.2 and classified as problematic. Impacted is an unknown function of the component IPv6 Fragment ID Handler. This manipulation causes entropy. This vulnerability appears as CVE-2021-45484. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as problematic was found in NetBSD up to 9.2 (Operating System). Affected by this vulnerability is an unknown part of the component IPv6 Fragment ID Handler. 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 presented 12/25/2021. The advisory is shared at ftp.netbsd.org. This vulnerability is known as CVE-2021-45484 since 12/25/2021. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

Applying a patch is able to eliminate this problem.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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-2021-45484 (🔍)
GCVE (CVE): GCVE-0-2021-45484
GCVE (VulDB): GCVE-100-189073

Entryinfo

Created: 12/25/2021 09:36
Updated: 12/27/2021 10:00
Changes: 12/25/2021 09:36 (38), 12/27/2021 10:00 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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