CVE-2019-13629

State: Published
Severity: Not scored
Published: Oct 3, 2019
Updated: Aug 4, 2024
Reserved: Jul 17, 2019

Description

MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://eprint.iacr.org/2011/232.pdf
https://tches.iacr.org/index.php/TCHES/article/view/7337
[oss-security] 20191002 Minerva: ECDSA key recovery from bit-length leakagemailing-list
https://minerva.crocs.fi.muni.cz/

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.