Vulnerability · Published Aug 21, 2020 · Assigned by mitre
CVE-2020-15309
High 7.0
In plain English
A high-severity security flaw in the wolfssl package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.0High
Exploit odds (30 days)0.3%top 72.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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).
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | wolfssl | 4.5.0+dfsg-1 | DEBIAN-CVE-2020-15309 |
| Debian:13 | wolfssl | 4.5.0+dfsg-1 | DEBIAN-CVE-2020-15309 |
Affected products (as reported)
References
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.5.0-stable x_refsource_CONFIRM
- https://arxiv.org/abs/2008.12188 x_refsource_MISC