CVE-2019-1010176 Explained : Impact and Mitigation
Learn about CVE-2019-1010176, a Buffer Overflow vulnerability in JerryScript that can lead to denial of service and arbitrary code execution. Find out how to mitigate and prevent this security issue.
JerryScript commit 4e58ccf68070671e1fff5cd6673f0c1d5b80b166 is affected by a Buffer Overflow vulnerability that can lead to denial of service and potential arbitrary code execution. The issue has been resolved in a fixed version after commit 505dace719aebb3308a3af223cfaa985159efae0.
Understanding CVE-2019-1010176
Commit 4e58ccf68070671e1fff5cd6673f0c1d5b80b166 in JerryScript is vulnerable to a Buffer Overflow, impacting the function lit_char_to_utf8_bytes.
What is CVE-2019-1010176?
CVE-2019-1010176 is a vulnerability in JerryScript that allows for a Buffer Overflow, potentially leading to denial of service and arbitrary code execution.
The Impact of CVE-2019-1010176
The vulnerability in JerryScript can result in a denial of service and may allow attackers to execute arbitrary code by exploiting specially-crafted JavaScript code.
Technical Details of CVE-2019-1010176
JerryScript commit 4e58ccf68070671e1fff5cd6673f0c1d5b80b166 is affected by a Buffer Overflow vulnerability.
Vulnerability Description
The vulnerability in JerryScript occurs in the function lit_char_to_utf8_bytes located at jerry-core/lit/lit-char-helpers.c, specifically at line 377.
Affected Systems and Versions
- Product: JerryScript
- Version: commit 4e58ccf68070671e1fff5cd6673f0c1d5b80b166 (fixed after commit 505dace719aebb3308a3af223cfaa985159efae0)
Exploitation Mechanism
The attack vector for this vulnerability is through executing specially-crafted JavaScript code.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of CVE-2019-1010176.
Immediate Steps to Take
- Update to the fixed version after commit 505dace719aebb3308a3af223cfaa985159efae0.
- Monitor for any unusual activities on the affected component.
Long-Term Security Practices
- Regularly update and patch software to prevent vulnerabilities.
- Conduct security audits and code reviews to identify and address potential issues.
Patching and Updates
Ensure that all systems running JerryScript are updated to the fixed version after commit 505dace719aebb3308a3af223cfaa985159efae0.