CVE-2017-18212 : Vulnerability Insights and Analysis

JerryScript 1.0 has a vulnerability that can lead to a heap-based buffer over-read in the lit_read_code_unit_from_hex function. This issue can be exploited through a specific payload.

Understanding CVE-2017-18212

This CVE involves a heap-based buffer over-read vulnerability in JerryScript 1.0.

What is CVE-2017-18212?

JerryScript 1.0 is susceptible to a heap-based buffer over-read in the lit_read_code_unit_from_hex function, which is located in lit/lit-char-helpers.c. An attacker can exploit this vulnerability using a crafted payload.

The Impact of CVE-2017-18212

This vulnerability could allow an attacker to execute arbitrary code or cause a denial of service by triggering a heap-based buffer over-read.

Technical Details of CVE-2017-18212

This section provides more technical insights into the CVE.

Vulnerability Description

The vulnerability in JerryScript 1.0 allows for a heap-based buffer over-read in the lit_read_code_unit_from_hex function.

Affected Systems and Versions

Affected Product: Not applicable
Affected Vendor: Not applicable
Affected Version: Not applicable

Exploitation Mechanism

The vulnerability can be exploited through a specific payload using RegExp("[\x0").

Mitigation and Prevention

Protecting systems from CVE-2017-18212 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply security patches or updates provided by the vendor.
Monitor for any unusual activities on the system.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Conduct security assessments and penetration testing to identify vulnerabilities.

Patching and Updates

Ensure that the latest patches and updates are applied to the system to mitigate the risk of exploitation.