CVE-2018-11418 : Security Advisory and Response

A vulnerability has been identified in version 1.0 of the JerryScript software, involving a heap-based buffer over-read within the lit_read_code_unit_from_utf8 function.

Understanding CVE-2018-11418

This CVE-2018-11418 pertains to a specific vulnerability in JerryScript version 1.0.

What is CVE-2018-11418?

JerryScript 1.0 is affected by a heap-based buffer over-read vulnerability in the lit_read_code_unit_from_utf8 function, exploitable using a RegExp("[\u0020") payload.

The Impact of CVE-2018-11418

The vulnerability is related to the re_parse_char_class function in the re-parser.c file within the parser/regexp directory.

Technical Details of CVE-2018-11418

This section provides detailed technical information about the vulnerability.

Vulnerability Description

An issue was discovered in JerryScript 1.0, involving a heap-based buffer over-read in the lit_read_code_unit_from_utf8 function via a RegExp("[\u0020") payload, specifically related to re_parse_char_class in parser/regexp/re-parser.c.

Affected Systems and Versions

Product: JerryScript
Version: 1.0

Exploitation Mechanism

The vulnerability can be exploited using a RegExp("[\u0020") payload.

Mitigation and Prevention

Here are the steps to mitigate and prevent exploitation of CVE-2018-11418.

Immediate Steps to Take

Update JerryScript to a patched version if available.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update software to the latest versions.
Implement code reviews and security testing in the development process.

Patching and Updates

Ensure that all software components, including JerryScript, are regularly updated to the latest secure versions.