In Trusted Firmware-M through 1.3.0, cleaning up the memory allocated for a multi-part cryptographic operation (in the event of a failure) can prevent the abort() operation in the associated cryptographic library from freeing internal resources, causing a memory leak.

References

• https://nvd.nist.gov/vuln/detail/CVE-2021-32032
• https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/commit/?id=7e2e523a1c4e9ac7b9cc4fd551831f7639ed5ff9
• https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/crypto_multi_part_ops_abort_fail.rst
• https://www.trustedfirmware.org