CVE-2021-45485

High

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.

Package Linux Kernel
Published 2021-12-25
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.5

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness type

CWE-327

CVE-2021-45485 is classified as CWE-327

See CWE-327 on MITRE CWE for full details on this weakness type.

References

5 total

Frequently asked questions

  • What is CVE-2021-45485?

    CVE-2021-45485 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . CVE-2021-45485 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2021-45485?

    CVE-2021-45485 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N .

  • Is there a patch available for CVE-2021-45485?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2021-45485 patch availability.

  • Is CVE-2021-45485 actively exploited?

    No. CVE-2021-45485 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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