CVE-2021-43267

critical

Description

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.

References

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

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

https://lists.fedoraproject.org/archives/list/[email protected]/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/

https://lists.fedoraproject.org/archives/list/[email protected]/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/

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

http://www.openwall.com/lists/oss-security/2022/02/10/1

Details

Source: MITRE

Published: 2021-11-02

Updated: 2022-11-03

Type: CWE-20

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL