CVE-2017-11697 : Vulnerability Insights and Analysis
Learn about CVE-2017-11697, a vulnerability in Mozilla Network Security Services (NSS) that can lead to a denial of service condition and system crash. Find out how to mitigate and prevent this issue.
A vulnerability in Mozilla Network Security Services (NSS) can lead to a denial of service condition and system crash due to a floating point exception triggered by a specially crafted cert8.db file.
Understanding CVE-2017-11697
This CVE involves a specific vulnerability in NSS that can be exploited by attackers to cause a denial of service.
What is CVE-2017-11697?
The vulnerability exists in the __hash_open function in hash.c:229 in Mozilla Network Security Services (NSS). Attackers can exploit this flaw to trigger a denial of service condition, resulting in a floating point exception and system crash. The attack vector involves a specially crafted cert8.db file.
The Impact of CVE-2017-11697
- Context-dependent attackers can exploit this vulnerability to cause a denial of service condition, leading to a system crash.
Technical Details of CVE-2017-11697
This section provides more technical insights into the vulnerability.
Vulnerability Description
The __hash_open function in hash.c:229 in Mozilla Network Security Services (NSS) allows context-dependent attackers to cause a denial of service (floating point exception and crash) via a crafted cert8.db file.
Affected Systems and Versions
- Affected Product: Not applicable
- Affected Vendor: Not applicable
- Affected Version: Not applicable
Exploitation Mechanism
- Attackers exploit the vulnerability by using a specially crafted cert8.db file to trigger a denial of service condition.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate steps and long-term security practices.
Immediate Steps to Take
- Monitor vendor security advisories for patches and updates related to NSS.
- Implement file integrity monitoring to detect unauthorized changes to cert8.db files.
Long-Term Security Practices
- Regularly update and patch NSS to address known vulnerabilities.
- Conduct security assessments to identify and mitigate potential vulnerabilities in NSS.
Patching and Updates
- Apply patches provided by the vendor to address the vulnerability in NSS.