CVE-2018-6869 : Exploit Details and Defense Strategies
Learn about CVE-2018-6869, a vulnerability in ZZIPlib 0.13.68 that allows remote attackers to trigger a denial of service by exploiting uncontrolled memory allocation. Find out how to mitigate this issue.
A vulnerability present in ZZIPlib 0.13.68 allows remote attackers to cause a denial of service using a specially crafted zip file. This vulnerability exploits an uncontrolled memory allocation and triggers a crash within the __zzip_parse_root_directory function of the zzip/zip.c module.
Understanding CVE-2018-6869
This CVE entry describes a vulnerability in ZZIPlib 0.13.68 that can be exploited by remote attackers to trigger a denial of service attack.
What is CVE-2018-6869?
In ZZIPlib 0.13.68, a specific vulnerability allows attackers to exploit uncontrolled memory allocation, leading to a crash in the __zzip_parse_root_directory function of zzip/zip.c. This can be achieved by using a specially crafted zip file.
The Impact of CVE-2018-6869
The vulnerability can be leveraged by remote attackers to cause a denial of service on systems running the affected version of ZZIPlib.
Technical Details of CVE-2018-6869
This section provides more in-depth technical details about the vulnerability.
Vulnerability Description
The vulnerability in ZZIPlib 0.13.68 arises from uncontrolled memory allocation, resulting in a crash within the __zzip_parse_root_directory function of the zzip/zip.c module.
Affected Systems and Versions
- ZZIPlib version 0.13.68 is affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting a malicious zip file that triggers the uncontrolled memory allocation, leading to a crash in the specified function.
Mitigation and Prevention
To address CVE-2018-6869, follow these mitigation strategies:
Immediate Steps to Take
- Update ZZIPlib to a non-vulnerable version.
- Implement network security measures to prevent unauthorized access.
Long-Term Security Practices
- Regularly update software and libraries to patch known vulnerabilities.
- Conduct security assessments and penetration testing to identify and address weaknesses.
Patching and Updates
- Apply security patches provided by the vendor promptly to mitigate the vulnerability.