CVE-2021-32032
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.77% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- trustedfirmware/trusted firmware-m
- Source
- cve@mitre.org
References
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/commit/?id=7e2e523a1c4e9ac7b9cc4fd551831f7639ed5ff9Mailing List, Patch, Third Party Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/crypto_multi_part_ops_abort_fail.rstExploit, Third Party Advisory
- https://www.trustedfirmware.orgVendor Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/commit/?id=7e2e523a1c4e9ac7b9cc4fd551831f7639ed5ff9Mailing List, Patch, Third Party Advisory
- https://git.trustedfirmware.org/TF-M/trusted-firmware-m.git/tree/docs/security/security_advisories/crypto_multi_part_ops_abort_fail.rstExploit, Third Party Advisory
- https://www.trustedfirmware.orgVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.