What is a CVE?

CVE stands for Common Vulnerabilities and Exposures. The system provides a method for publicly sharing information on cybersecurity vulnerabilities and exposures.

What is a CVE and how is it used?

CVE is a glossary that classifies vulnerabilities. The glossary analyzes vulnerabilities and then uses the Common Vulnerability Scoring System (CVSS) to evaluate the threat level of a vulnerability. A CVE score is often used for prioritizing the security of vulnerabilities.

What is an example of a CVE?

CVE IDs can now have 4 or more digits in the sequence number portion of the ID. For example, CVE-YYYY-NNNN with 4 digits in the sequence number, CVE-YYYY-NNNNN with 5 digits in the sequence number, CVE-YYYY-NNNNNNN with 7 digits in the sequence number, and so on.

What is the CVE for the 2020?

An improper handling of exceptional conditions vulnerability in Cortex XDR Agent allows a local authenticated Windows user to create files in the software’s internal program directory that prevents the Cortex XDR Agent from starting.

Is CVE a dictionary or database?

The CVE list is defined by MITRE as a glossary or dictionary of publicly available vulnerabilities and exposures, rather than a database, and as such is intended to serve as an industry baseline for communicating and dialoguing around a given vulnerability.

What are the advantages of CVE?

The key benefits of CVE include:

• Understanding if compatible products have been reviewed for specific security issues.
• Trusted and interoperable products and services that can help protect the organization.
• Set a baseline for understanding what each tool covers and how appropriate they are for the organization.

Who makes CVE?

Common Vulnerabilities and Exposures (CVE) is a catalog of known security threats. The catalog is sponsored by the United States Department of Homeland Security (DHS), and threats are divided into two categories: vulnerabilities and exposures.

What are elements of a CVE?

The CVE element contains the CVE ID of the entry. The References element contains CVE’s cross-references. There can be one or more Reference elements. Within a Reference element, the Description is used for the reference name (CVE-style “SOURCE:name”), and the URL element is used for the URL.

What is OpenSSL vulnerability?

OpenSSL 1.0.1 through 1.0.1f A vulnerability in OpenSSL could allow a remote attacker to expose sensitive data, possibly including user authentication credentials and secret keys, through incorrect memory handling in the TLS heartbeat extension.

What versions of OpenSSL are vulnerable to the TLS renegotiation issue?

A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue.

Why does a server support greater than SSLv2 but not SSL?

A server that supports greater than SSLv2 is supposed to reject connection attempts from a client where this special form of padding is present, because this indicates that a version rollback has occurred (i.e. both client and server support greater than SSLv2, and yet this is the version that is being requested).

What is an SSLv2 version rollback attack?

If a client attempts to negotiate SSLv2 with a server that is configured to support both SSLv2 and more recent SSL and TLS versions then a check is made for a version rollback attack when unpadding an RSA signature. Clients that support SSL or TLS versions greater than SSLv2 are supposed to use a special form of padding.