CWE
362
Advisory Published
Updated

CVE-2020-15309: Race Condition

First published: Fri Aug 21 2020(Updated: )

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).

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
WolfSSL wolfssl<4.5.0

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Frequently Asked Questions

  • What is CVE-2020-15309?

    CVE-2020-15309 is a vulnerability in wolfSSL before version 4.5.0 that allows local attackers to conduct a cache-timing attack against public key operations.

  • How does CVE-2020-15309 affect wolfSSL?

    CVE-2020-15309 affects wolfSSL before version 4.5.0 and can be exploited by local attackers to conduct a cache-timing attack.

  • What is the severity of CVE-2020-15309?

    CVE-2020-15309 has a severity level of high.

  • How can I fix CVE-2020-15309?

    To fix CVE-2020-15309, you should update wolfSSL to version 4.5.0 or later.

  • What is a cache-timing attack?

    A cache-timing attack is a method where an attacker tracks the time it takes to access certain cache locations, allowing them to infer sensitive information.

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