CVE-2017-11698 : Security Advisory and Response
Learn about CVE-2017-11698, a vulnerability in Mozilla Network Security Services (NSS) allowing attackers to trigger a heap-based buffer overflow. Find out the impact, affected systems, and mitigation steps.
A vulnerability has been discovered in the __get_page function of lib/dbm/src/h_page.c in Mozilla Network Security Services (NSS) that could result in a heap-based buffer overflow. This vulnerability can be utilized by attackers with contextual dependence to cause an unspecified impact by employing a specially crafted cert8.db file.
Understanding CVE-2017-11698
This CVE entry describes a specific vulnerability in Mozilla Network Security Services (NSS) that could lead to a heap-based buffer overflow.
What is CVE-2017-11698?
CVE-2017-11698 is a vulnerability in the __get_page function of NSS that allows attackers to trigger a heap-based buffer overflow by using a specially crafted cert8.db file.
The Impact of CVE-2017-11698
The vulnerability could be exploited by attackers with specific contextual dependencies to execute arbitrary code or crash the application, potentially leading to a denial of service (DoS) condition.
Technical Details of CVE-2017-11698
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability is a heap-based buffer overflow in the __get_page function of lib/dbm/src/h_page.c in Mozilla Network Security Services (NSS), enabling attackers to achieve an unspecified impact through a crafted cert8.db file.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by creating a specially crafted cert8.db file and utilizing contextual dependencies to trigger the heap-based buffer overflow.
Mitigation and Prevention
Protecting systems from CVE-2017-11698 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the vendor promptly.
- Monitor for any unusual activities on the network or systems that could indicate exploitation of the vulnerability.
Long-Term Security Practices
- Regularly update and patch all software and applications to prevent known vulnerabilities.
- Implement network segmentation and access controls to limit the impact of potential attacks.
Patching and Updates
Ensure that the latest security updates and patches are applied to the affected systems to mitigate the risk of exploitation.