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CVE-2019-13629

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CVSS 3.1
5.9 medium
EPSS
1%p67
Published
()
Modified
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.

Vendors
matrixssl
Products
matrixssl
Weakness
CWE-203, CWE-327
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD CVE.org GitHub PoCs EPSS (1.2%)

In the news

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