CVE-2019-17359 : Exploit Details and Defense Strategies
Learn about CVE-2019-17359, a vulnerability in the ASN.1 parser of BC Java version 1.63 in Bouncy Castle Crypto, potentially leading to an OutOfMemoryError. Find out how to mitigate the risks and prevent exploitation.
The ASN.1 parser of BC Java version 1.63 in Bouncy Castle Crypto is susceptible to triggering an attempted memory allocation, leading to an OutOfMemoryError, when presented with manipulated ASN.1 data. This vulnerability has been addressed in version 1.64 to prevent such issues.
Understanding CVE-2019-17359
This CVE involves a vulnerability in the ASN.1 parser of BC Java version 1.63 in Bouncy Castle Crypto, potentially causing an OutOfMemoryError due to manipulated data.
What is CVE-2019-17359?
The vulnerability in the ASN.1 parser of BC Java version 1.63 can lead to an attempted memory allocation issue, resulting in an OutOfMemoryError when encountering manipulated ASN.1 data.
The Impact of CVE-2019-17359
The vulnerability could allow attackers to trigger an OutOfMemoryError, potentially leading to denial of service or other security risks.
Technical Details of CVE-2019-17359
This section provides more in-depth technical information about the CVE.
Vulnerability Description
The vulnerability in the ASN.1 parser of BC Java version 1.63 can trigger a large attempted memory allocation, resulting in an OutOfMemoryError when processing crafted ASN.1 data. The issue has been fixed in version 1.64.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: Not applicable
Exploitation Mechanism
- Attackers can exploit this vulnerability by providing manipulated ASN.1 data to the affected parser, causing it to attempt a large memory allocation and potentially leading to an OutOfMemoryError.
Mitigation and Prevention
Protecting systems from CVE-2019-17359 requires specific actions to mitigate the risks.
Immediate Steps to Take
- Update Bouncy Castle Crypto to version 1.64 or the latest available release to address the vulnerability.
- Monitor system logs for any signs of memory allocation issues or OutOfMemoryErrors.
Long-Term Security Practices
- Regularly update software and libraries to ensure that known vulnerabilities are patched promptly.
- Implement proper input validation mechanisms to prevent the injection of manipulated data.
Patching and Updates
- Stay informed about security alerts and advisories related to Bouncy Castle Crypto to apply patches promptly.