Vulnerability Details : CVE-2021-43267

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.
Publish Date : 2021-11-02 Last Update Date : 2022-11-03

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- CVSS Scores & Vulnerability Types

CVSS Score	7.5
Confidentiality Impact	Partial (There is considerable informational disclosure.)
Integrity Impact	Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact	Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity	Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication	Not required (Authentication is not required to exploit the vulnerability.)
Gained Access	None
Vulnerability Type(s)
CWE ID	20

- Related OVAL Definitions

Title	Definition Id	Family
RHSA-2021:4645: kpatch-patch security update (Important)	oval:com.redhat.rhsa:def:20214645	unix
RHSA-2021:4646: kernel-rt security and bug fix update (Important)	oval:com.redhat.rhsa:def:20214646	unix
RHSA-2021:4647: kernel security update (Important)	oval:com.redhat.rhsa:def:20214647	unix

OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2021-43267

#	Product Type	Vendor	Product	Version	Update	Edition	Language
1	OS	Fedoraproject	Fedora	34	*	*	*	Version Details Vulnerabilities
2	OS	Fedoraproject	Fedora	35	*	*	*	Version Details Vulnerabilities
3	OS	Linux	Linux Kernel	*	*	*	*	Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor	Product	Vulnerable Versions
Fedoraproject	Fedora	2
Linux	Linux Kernel	1

- References For CVE-2021-43267

https://lists.fedoraproject.org/archives/list/[email protected]/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/
FEDORA FEDORA-2021-bdd146e463

https://security.netapp.com/advisory/ntap-20211125-0002/ CONFIRM

http://www.openwall.com/lists/oss-security/2022/02/10/1
MLIST [oss-security] 20220210 CVE-2022-0435: Remote Stack Overflow in Linux Kernel TIPC Module since 4.8 (net/tipc)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16

https://github.com/torvalds/linux/commit/fa40d9734a57bcbfa79a280189799f76c88f7bb0

https://lists.fedoraproject.org/archives/list/[email protected]/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/
FEDORA FEDORA-2021-a093973910

- Vulnerability Conditions

Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *
Vulnerability is valid if product versions listed below are used 0
Fedoraproject Fedora 35 * * * Fedoraproject Fedora 34 * * * Linux Linux Kernel * * * *	Netapp H300e * * * Netapp H300e Firmware * * * Netapp H300s * * * Netapp H300s Firmware * * * Netapp H410s * * * Netapp H410s Firmware * * * Netapp H500e * * * Netapp H500e Firmware * * * Netapp H500s * * * Netapp H500s Firmware * * * Netapp H700e * * * Netapp H700e Firmware * * * Netapp H700s * * * Netapp H700s Firmware * * *

- Metasploit Modules Related To CVE-2021-43267

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)