CVE-2018-20570 : What You Need to Know
Learn about CVE-2018-20570, a heap-based buffer over-read vulnerability in JasPer 2.0.14, allowing attackers to potentially disclose information or cause denial of service. Find mitigation steps and patching advice here.
A heap-based buffer over-read vulnerability exists in jp2_encode function located in jp2/jp2_enc.c file of JasPer 2.0.14.
Understanding CVE-2018-20570
What is CVE-2018-20570?
CVE-2018-20570 is a heap-based buffer over-read vulnerability found in the jp2_encode function within the jp2/jp2_enc.c file of JasPer 2.0.14.
The Impact of CVE-2018-20570
This vulnerability could allow an attacker to read beyond the allocated memory, potentially leading to information disclosure or a denial of service.
Technical Details of CVE-2018-20570
Vulnerability Description
The vulnerability is due to improper handling of memory operations in the jp2_encode function of JasPer 2.0.14, leading to a heap-based buffer over-read.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: JasPer 2.0.14
Exploitation Mechanism
The vulnerability can be exploited by a remote attacker sending a specially crafted file to the vulnerable system, triggering the heap-based buffer over-read.
Mitigation and Prevention
Immediate Steps to Take
- Apply the security updates provided by the vendor promptly.
- Consider implementing appropriate network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update and patch software to mitigate known vulnerabilities.
- Conduct security assessments and audits to identify and address potential weaknesses.
Patching and Updates
- Refer to the vendor advisories and security alerts for patching instructions and updates.