CVE-2019-19963

published 2019-12-25

CVE-2019-19963: An issue was discovered in wolfSSL before 4.3.0 in a non-default configuration where DSA is enabled. DSA signing uses the BEEA algorithm during modular…

Priority P4 24 medium 5.3 CVSS 3.1

AV N AC L PR N UI N S U C L I N A N

An issue was discovered in wolfSSL before 4.3.0 in a non-default configuration where DSA is enabled. DSA signing uses the BEEA algorithm during modular inversion of the nonce, leading to a side-channel attack against the nonce.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	wolfssl	< wolfssl 4.3.0+dfsg-1 (bookworm)	wolfssl 4.3.0+dfsg-1 (bookworm)
wolfssl	wolfssl	< 4.3.0	4.3.0
wolfssl	wolfssl	>= 0 < 4.3.0+dfsg-1	4.3.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.3.0+dfsg-1	4.3.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.3.0+dfsg-1	4.3.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.3.0+dfsg-1	4.3.0+dfsg-1

CVSS provenance

nvd v3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvd v2.0 4.3 MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N

osv 5.3 MEDIUM

vendor_debian 5.3 MEDIUM

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