9.8
CVSSv3

CVE-2021-43267

Published: 02/11/2021 Updated: 03/11/2022
CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Summary

An issue exists in net/tipc/crypto.c in the Linux kernel prior to 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote malicious users to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

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linux linux kernel

fedoraproject fedora 34

fedoraproject fedora 35

netapp h300s_firmware -

netapp h500s_firmware -

netapp h700s_firmware -

netapp h300e_firmware -

netapp h500e_firmware -

netapp h700e_firmware -

netapp h410s_firmware -

Vendor Advisories

An issue was discovered in net/tipc/cryptoc in the Linux kernel before 51416 The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type ...
ALAS2LIVEPATCH-2021-074 Amazon Linux 2 Security Advisory: ALASLIVEPATCH-2021-074 Advisory Release Date: 2021-12-02 19:15 P ...
ALAS2LIVEPATCH-2021-073 Amazon Linux 2 Security Advisory: ALASLIVEPATCH-2021-073 Advisory Release Date: 2021-12-02 19:15 P ...
An issue was discovered in net/tipc/cryptoc in the Linux kernel before 51416 The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type ...
A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS A local user could use this flaw to crash the system (CVE-2021-20321) A flaw was found in the Linux kernel A memory leak in the ccp-ops crypto driver can allow attackers to cause a denial of service ...

Mailing Lists

Immunity Security Advisory CVE-2022-0435: A Remote Stack Overflow in The Linux Kernel ======================================================================== Contents ======================================================================== Summary Analysis Further Information Remediation Acknowledgements Disclosure Timeline ================= ...

Github Repositories

CVE-2021-43267 An issue was discovered in net/tipc/cryptoc in the Linux kernel before 51416 The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type authentication complexity vector NONE LOW NETWORK confidentiality integrity availability

CVE-2021-43267-POC trusty poc Provide it to legitimate people

CVE-2021-43267 Local PoC exploit for CVE-2021-43267 (Linux TIPC) Reference: haxxin/posts/pwning-tipc/

VED (Vault Exploit Defense) - Linux kernel threat detection and prevention system How VED evolved Our previous write-up introduced the problem and the current status of Linux kernel security and why cloud native and automotive solution should adopt 3rd-party Linux kernel hardening solution We've been trying to build the full-stack security solution for platform and infras

Linux Kernel Exploitation A collection of links related to Linux kernel security and exploitation Updated bimonthly Pull requests are welcome as well Follow @andreyknvl on Twitter to be notified of updates Subscribe to @linkersec on Telegram, Twitter, or Reddit for highlights Trainings See xairyio/trainings/ Contents Books Techniques Exploitation Protection Bypasses

PoC in GitHub 2022 CVE-2022-0185 (2022-02-11) A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a f

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Critical Linux Kernel Bug Allows Remote Takeover
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A critical heap-overflow security vulnerability in the Transparent Inter Process Communication (TIPC) module of the Linux kernel could allow local exploitation and remote code execution, leading to full system compromise.
TIPC is a peer-to-peer protocol used by nodes within a Linux cluster to communicate with each other in an optimized way; it enables various types of messages that are used for different purposes. According to SentinelOne’s SentinelLabs, the bug in question (CVE-2021-432...