Description
In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
Published: 2021-12-25
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-32251 In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.
Ubuntu USN Ubuntu USN USN-5299-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5343-1 Linux kernel vulnerabilities
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00377}

epss

{'score': 0.00512}


Subscriptions

Linux Linux Kernel
Netapp Aff A400 Aff A400 Firmware All Flash Fabric-attached Storage 8300 All Flash Fabric-attached Storage 8300 Firmware All Flash Fabric-attached Storage 8700 All Flash Fabric-attached Storage 8700 Firmware Brocade Fabric Operating System Firmware E-series Santricity Os Controller Fabric-attached Storage 8300 Fabric-attached Storage 8300 Firmware Fabric-attached Storage 8700 Fabric-attached Storage 8700 Firmware Fabric-attached Storage A400 Fabric-attached Storage A400 Firmware H300e H300e Firmware H300s H300s Firmware H410c H410c Firmware H410s H410s Firmware H500e H500e Firmware H500s H500s Firmware H610c H610c Firmware H610s H610s Firmware H615c H615c Firmware H700e H700e Firmware H700s H700s Firmware Hci Compute Node Hci Compute Node Firmware Solidfire\, Enterprise Sds \& Hci Storage Node Solidfire \& Hci Management Node
Oracle Communications Cloud Native Core Binding Support Function Communications Cloud Native Core Network Exposure Function Communications Cloud Native Core Policy
Redhat Enterprise Linux Rhel Eus
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T04:39:21.141Z

Reserved: 2021-12-25T00:00:00.000Z

Link: CVE-2021-45485

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-12-25T02:15:06.667

Modified: 2024-11-21T06:32:18.733

Link: CVE-2021-45485

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-05-31T00:00:00Z

Links: CVE-2021-45485 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses