CVE-2020-15309
7.0
HIGH
CVSS 3.1
EPSS 0.10%
Description
An issue was discovered in wolfSSL before 4.5.0, when single precision is not employed. Local attackers can conduct a cache-timing attack against public key operations. These attackers may already have obtained sensitive information if the affected system has been used for private key operations (e.g., signing with a private key).
How to fix CVE-2020-15309
To remediate CVE-2020-15309, upgrade the affected package to a fixed version below.
- —upgrade to 4.5.0+dfsg-1 or later
Is CVE-2020-15309 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 4.5.0+dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |