CVE-2020-11735: The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constant-time modular inverse when mapping to affine coordinates, aka a "projective…

PriorityP425medium5.3CVSS 3.1

AVNACLPRNUINSUCLINAN

EPSS

1.29%

66.9th percentile

The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constant-time modular inverse when mapping to affine coordinates, aka a "projective coordinates leak."

Affected

6 ranges

Vendor	Product	Version range	Fixed in
debian	wolfssl	< wolfssl 4.4.0+dfsg-1 (bookworm)	wolfssl 4.4.0+dfsg-1 (bookworm)
wolfssl	wolfssl	< 4.4.0	4.4.0
wolfssl	wolfssl	>= 0 < 4.4.0+dfsg-1	4.4.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.4.0+dfsg-1	4.4.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.4.0+dfsg-1	4.4.0+dfsg-1
wolfssl	wolfssl	>= 0 < 4.4.0+dfsg-1	4.4.0+dfsg-1

CVSS provenance

nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N

osv5.3MEDIUM

vendor_debian5.3MEDIUM

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