CVE-2020-14155 : What You Need to Know

CVE-2020-14155 is a vulnerability in libpcre in PCRE before version 8.44 that allows an integer overflow via a large number after a (?C substring.

Understanding CVE-2020-14155

This CVE entry pertains to a specific vulnerability in the PCRE library.

What is CVE-2020-14155?

This CVE identifies an integer overflow issue in libpcre in PCRE versions prior to 8.44, triggered by a large number following a (?C substring.

The Impact of CVE-2020-14155

The vulnerability could potentially lead to security breaches, allowing attackers to execute arbitrary code or cause a denial of service.

Technical Details of CVE-2020-14155

This section delves into the technical aspects of the CVE.

Vulnerability Description

The vulnerability arises from an integer overflow in libpcre in PCRE versions before 8.44, specifically when encountering a large number after a (?C substring.

Affected Systems and Versions

Vendor: n/a
Product: n/a
Affected Versions: All versions prior to PCRE 8.44

Exploitation Mechanism

The vulnerability can be exploited by crafting a malicious input that triggers the integer overflow in the PCRE library.

Mitigation and Prevention

Protecting systems from CVE-2020-14155 requires specific actions.

Immediate Steps to Take

Update PCRE to version 8.44 or later to mitigate the vulnerability.
Monitor vendor security advisories for patches and updates.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Implement input validation and sanitization to prevent malicious inputs.

Patching and Updates

Apply patches provided by the PCRE library maintainers.
Stay informed about security alerts and updates from relevant vendors.