CVE-2017-1000413

low-risk

Published 2018-01-02

Linaro's open source TEE solution called OP-TEE, version 2.4.0 (and older) is vulnerable a timing attack in the Montgomery parts of libMPA in OP-TEE resulting in a compromised private RSA key.

Do I need to act?

0.34% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.9/10 Medium

NETWORK / HIGH complexity

Affected Products (1)

Op-Tee

Affected Vendors

Linaro

References (6)

Third Party Advisory https://github.com/OP-TEE/optee_os/blob/2.5.0/CHANGELOG.md

Third Party Advisory https://github.com/OP-TEE/optee_os/pull/1610

Vendor Advisory https://www.op-tee.org/security-advisories/

Third Party Advisory https://github.com/OP-TEE/optee_os/blob/2.5.0/CHANGELOG.md

Third Party Advisory https://github.com/OP-TEE/optee_os/pull/1610

Vendor Advisory https://www.op-tee.org/security-advisories/

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal