CVE-2021-43267

CRITICAL 9.8CVE-2021-43267 · Published 02/11/2021 · updated 17/06/2026

In short

CVE-2021-43267 is a CRITICAL (CVSS 9.8) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 57.9%, higher than 99.1% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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

openwall.com/lists/oss-security/2022/02/10/1 · Exploit
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.16 · Mailing List
torvalds/linux commit fa40d97 · Patch
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7
security.netapp.com/advisory/ntap-20211125-0002 · Third Party Advisory

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