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.
02 / AFFECTED SOFTWARE
Affected packages
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In tipc_crypto_key_rcv of net/tipc/crypto.c , there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with System execution privileges needed. User interaction is not needed for exploitation.
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.
05 / REFERENCES
Further evidence
- https://android.googlesource.com/kernel/common/+/fa40d9734a57bcbfa79a280189799f76c88f7bb0
- https://source.android.com/security/bulletin/2022-03-01
- http://www.openwall.com/lists/oss-security/2022/02/10/1
- 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/package-announce%40lists.fedoraproject.org/message/CVWL7HZV5T5OEKJPO2D67RMFMKBBXGGB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDDEW4APTYKJK365HC2JZIVXYUV7ZRN7/
- https://security.netapp.com/advisory/ntap-20211125-0002/