CVE-2017-11553 : Security Advisory and Response
Learn about CVE-2017-11553, a vulnerability in Exiv2 0.26 that allows remote denial of service attacks. Find out how to mitigate and prevent exploitation of this issue.
Exiv2 0.26 is susceptible to a remote denial of service vulnerability triggered by an illegal address access in the extend_alias_table function in localealias.c.
Understanding CVE-2017-11553
This CVE entry describes a specific vulnerability in Exiv2 0.26 that can lead to a denial of service attack.
What is CVE-2017-11553?
The vulnerability in Exiv2 0.26 allows for a remote denial of service attack by exploiting an illegal address access in the extend_alias_table function in localealias.c. Attackers can achieve this by providing a specially crafted input.
The Impact of CVE-2017-11553
The vulnerability can be exploited remotely to cause a denial of service, potentially disrupting the availability of the affected system.
Technical Details of CVE-2017-11553
Exiv2 0.26 is affected by a specific vulnerability that can be exploited for a denial of service attack.
Vulnerability Description
The extend_alias_table function in localealias.c of Exiv2 0.26 allows for an illegal address access, which can be triggered by providing a crafted input, leading to a denial of service.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by providing a specially crafted input to the extend_alias_table function in localealias.c, resulting in an illegal address access and subsequent denial of service.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-11553.
Immediate Steps to Take
- Apply security patches or updates provided by the vendor, if available.
- Implement network security measures to restrict access to vulnerable components.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and mitigate potential risks.
- Educate users and administrators about secure coding practices and the importance of cybersecurity.
Patching and Updates
Ensure that Exiv2 0.26 is updated with the latest patches and security fixes to mitigate the risk of exploitation.