CVE-2018-19543 : Security Advisory and Response
Learn about CVE-2018-19543, a heap-based buffer over-read vulnerability in JasPer 2.0.14, allowing potential exploitation. Find out how to mitigate and prevent this security issue.
In JasPer 2.0.14, a heap-based buffer over-read vulnerability was discovered in the function jp2_decode in libjasper/jp2/jp2_dec.c, allowing an attacker to potentially exploit this issue.
Understanding CVE-2018-19543
This CVE entry describes a specific vulnerability in the JasPer library version 2.0.14.
What is CVE-2018-19543?
CVE-2018-19543 is a heap-based buffer over-read vulnerability in the JasPer library version 2.0.14, specifically in the function jp2_decode in libjasper/jp2/jp2_dec.c. This vulnerability could be exploited by an attacker to read beyond the allocated buffer, potentially leading to information disclosure or a denial of service.
The Impact of CVE-2018-19543
The impact of this vulnerability includes the risk of sensitive data exposure or system crashes due to the potential exploitation by malicious actors.
Technical Details of CVE-2018-19543
This section provides more in-depth technical details about the vulnerability.
Vulnerability Description
The vulnerability in JasPer 2.0.14 is a heap-based buffer over-read with a size of 8 in the jp2_decode function in libjasper/jp2/jp2_dec.c.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious input that triggers the heap-based buffer over-read in the jp2_decode function.
Mitigation and Prevention
Protecting systems from CVE-2018-19543 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply patches or updates provided by the software vendor to address the vulnerability.
- Monitor security advisories for any new information or patches related to this issue.
Long-Term Security Practices
- Regularly update software and libraries to ensure the latest security fixes are in place.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
Ensure that the JasPer library is updated to a version that includes a fix for the heap-based buffer over-read vulnerability.