CVE-2021-45485
"Linux Kernel IPv6 Information Leak"
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.
INFO
Published Date :
Dec. 25, 2021, 2:15 a.m.
Last Modified :
Nov. 21, 2024, 6:32 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2021-45485
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the affected Linux kernel packages.
- Update the affected packages for your product.
Public PoC/Exploit Available at Github
CVE-2021-45485 has a 4 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-45485.
| URL | Resource |
|---|---|
| https://arxiv.org/pdf/2112.09604.pdf | Technical Description Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 | Release Notes Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99 | Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220121-0001/ | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html | Patch Third Party Advisory |
| https://arxiv.org/pdf/2112.09604.pdf | Technical Description Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 | Release Notes Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99 | Patch Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220121-0001/ | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html | Patch Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-45485 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-45485
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
All CVE - PoC in GitHub
poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate
None
None
None
Makefile Roff C Assembly Shell Perl C++ Awk Python sed
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-45485 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-45485 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://arxiv.org/pdf/2112.09604.pdf Added Reference https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99 Added Reference https://security.netapp.com/advisory/ntap-20220121-0001/ Added Reference https://www.oracle.com/security-alerts/cpujul2022.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Feb. 24, 2023
Action Type Old Value New Value Changed Reference Type https://www.oracle.com/security-alerts/cpujul2022.html No Types Assigned https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:netapp:e-series_santricity_os_controller:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller_8300:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller_8700:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller_a400:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h610c:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h610s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h615c:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* *cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:e-series_santricity_os_controller:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:22.1.3:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_cloud_native_core_network_exposure_function:22.1.1:*:*:*:*:*:*:* *cpe:2.3:a:oracle:communications_cloud_native_core_policy:22.2.0:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:all_flash_fabric-attached_storage_8300_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:all_flash_fabric-attached_storage_8300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:fabric-attached_storage_8300_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:fabric-attached_storage_8300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:all_flash_fabric-attached_storage_8700_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:all_flash_fabric-attached_storage_8700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:fabric-attached_storage_8700_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:fabric-attached_storage_8700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:aff_a400:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:fabric-attached_storage_a400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:fabric-attached_storage_a400:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:hci_compute_node_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 25, 2022
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpujul2022.html [No Types Assigned] -
Modified Analysis by [email protected]
Apr. 12, 2022
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20220121-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20220121-0001/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:e-series_santricity_os_controller:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller_8300:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller_8700:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller_a400:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire\,_enterprise_sds_\&_hci_storage_node:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h300e:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h300s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h410s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h500e:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h500s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h610c:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h610s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h615c:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h700e:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:baseboard_management_controller_h700s:-:*:*:*:*:*:*:* *cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* *cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 21, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220121-0001/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 11, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://arxiv.org/pdf/2112.09604.pdf No Types Assigned https://arxiv.org/pdf/2112.09604.pdf Technical Description, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.3 Release Notes, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=62f20e068ccc50d6ab66fdb72ba90da2b9418c99 Patch, Vendor Advisory Added CWE NIST CWE-327 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.13.3
Vulnerability Scoring Details
Base CVSS Score: 7.5
Base CVSS Score: 5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.38 }} -0.14%
score
0.58762
percentile