VulnerabilityModified
CVE-2020-15309
Local attackers can conduct a cache-timing attack against public key operations.
HIGH 7.0EPSS 0.34%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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).
- CVSS 3.1
- 7.0 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.34% probability · 27th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- wolfssl/wolfssl
- Source
- cve@mitre.org
References
- https://arxiv.org/abs/2008.12188Exploit, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stableThird Party Advisory
- https://arxiv.org/abs/2008.12188Exploit, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stableThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.