CVE-2020-14314 : Exploit Details and Defense Strategies
Learn about CVE-2020-14314, a vulnerability in the Linux kernel before 5.9-rc2 allowing a local user to crash the system. Find mitigation steps and preventive measures here.
A memory out-of-bounds read flaw in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system can allow a local user to crash the system if a directory with broken indexing exists.
Understanding CVE-2020-14314
A memory out-of-bounds read flaw in the Linux kernel affecting system availability.
What is CVE-2020-14314?
This vulnerability in the Linux kernel allows a local user to crash the system by accessing a directory with broken indexing.
The Impact of CVE-2020-14314
The highest threat from this vulnerability is to system availability.
Technical Details of CVE-2020-14314
A memory out-of-bounds read flaw in the Linux kernel before 5.9-rc2 with the ext3/ext4 file system.
Vulnerability Description
The flaw allows a local user to crash the system by accessing a directory with broken indexing.
Affected Systems and Versions
- Vendor: Linux Kernel
- Product: kernel
- Versions: before 5.9-rc2
Exploitation Mechanism
The vulnerability can be exploited by a local user accessing a directory with broken indexing.
Mitigation and Prevention
Steps to address and prevent the CVE-2020-14314 vulnerability.
Immediate Steps to Take
- Apply patches provided by the Linux Kernel maintainers.
- Monitor vendor advisories for updates and apply them promptly.
- Restrict access to vulnerable systems.
Long-Term Security Practices
- Regularly update and patch the Linux kernel and related components.
- Implement least privilege access controls to limit system exposure.
- Conduct regular security assessments and audits.
- Educate users on secure practices and awareness.
Patching and Updates
Regularly check for updates and patches from the Linux Kernel maintainers and apply them promptly.