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. 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?

No patch is currently available for CVE-2021-45485. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-45485 actively exploited?

CVE-2021-45485 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

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

The following references provide additional information about CVE-2021-45485 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Arxiv
https://arxiv.org/pdf/2112.09604.pdf

Technical Description Third Party Advisory
Kernel.org
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3

Release Notes Vendor Advisory
Security
https://security.netapp.com/advisory/ntap-20220121-0001/

Third Party Advisory
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99
Patch
Kernel patch commit
https://www.oracle.com/security-alerts/cpujul2022.html
Patch

Details

CVE ID CVE-2021-45485

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2021-12-25

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

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?

No patch is currently available for CVE-2021-45485. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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.