CVE-2019-13105 : What You Need to Know
Learn about CVE-2019-13105, a U-Boot vulnerability in versions 2019.07-rc1 to 2019.07-rc4, potentially leading to double-free issues in ext4 filesystems. Find mitigation steps and prevention measures.
A potential issue has been identified in U-Boot versions 2019.07-rc1 to 2019.07-rc4, where a double-free vulnerability may occur while listing files in a manipulated ext4 filesystem, leading to the unintended release of cached data blocks.
Understanding CVE-2019-13105
This CVE involves a double-free vulnerability in specific U-Boot versions, potentially triggered by interacting with a crafted ext4 filesystem.
What is CVE-2019-13105?
CVE-2019-13105 is a vulnerability in U-Boot versions 2019.07-rc1 to 2019.07-rc4 that could lead to a double-free issue when handling files within a manipulated ext4 filesystem.
The Impact of CVE-2019-13105
The vulnerability could result in the unintended release of cached data blocks, potentially leading to system instability or unauthorized access.
Technical Details of CVE-2019-13105
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The issue in U-Boot versions 2019.07-rc1 to 2019.07-rc4 allows for a double-free of cached data blocks when interacting with a compromised ext4 filesystem.
Affected Systems and Versions
- U-Boot versions 2019.07-rc1 to 2019.07-rc4
Exploitation Mechanism
The vulnerability can be exploited by manipulating an ext4 filesystem to trigger the double-free condition during file listing operations.
Mitigation and Prevention
Protecting systems from CVE-2019-13105 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply patches or updates provided by U-Boot to address the vulnerability.
- Monitor for any unusual system behavior that could indicate exploitation.
Long-Term Security Practices
- Regularly update U-Boot and other software components to prevent known vulnerabilities.
- Implement secure coding practices to reduce the likelihood of similar issues in the future.
- Conduct regular security assessments to identify and address potential weaknesses.
- Educate users on safe computing practices to mitigate risks.
Patching and Updates
Ensure timely installation of patches and updates released by U-Boot to mitigate the CVE-2019-13105 vulnerability.