CVE-2020-11735 — Observable Discrepancy in Wolfssl

CWE-203 — Observable DiscrepancyCWE-326 — Inadequate Encryption Strength5 documents5 sources
Severity
5.3MEDIUMNVD
EPSS
0.4%
top 42.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
WolfsslDebian Wolfssl
Timeline
PublishedJun 25
Latest updateMay 24

Description

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."

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages3 packages

▶debiandebian/wolfssl< wolfssl 4.4.0+dfsg-1 (bookworm)
▶NVDwolfssl/wolfssl< 4.4.0
▶Debianwolfssl/wolfssl< 4.4.0+dfsg-1+3

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-wc3x-qj47-37mg: The private-key operations in ecc↗2022-05-24
▶
OSV
CVE-2020-11735: The private-key operations in ecc↗2020-06-25
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📋Vendor Advisories

1
Debian
CVE-2020-11735: wolfssl - The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constan...↗2020
▶

💬Community

1
Bugzilla
CVE-2020-1718 keycloak: security issue on reset credential flow↗2020-01-31
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CVE-2020-11735 — Observable Discrepancy in Wolfssl | cvebase