CVE-2019-15505 : What You Need to Know
Learn about CVE-2019-15505, a critical out-of-bounds read vulnerability in the Linux kernel up to version 5.2.9, allowing remote exploitation via USB device traffic manipulation.
A vulnerability in the Linux kernel up to version 5.2.9 allows for an out-of-bounds read via crafted USB device traffic, potentially exploitable remotely.
Understanding CVE-2019-15505
This CVE identifies a specific vulnerability in the Linux kernel that could be leveraged by attackers to execute malicious activities.
What is CVE-2019-15505?
The out-of-bounds read vulnerability is present in the drivers/media/usb/dvb-usb/technisat-usb2.c file within the Linux kernel up to version 5.2.9. It can be exploited by manipulating the traffic of a USB device, which can be done remotely using USBIP or USB redirector.
The Impact of CVE-2019-15505
This vulnerability could allow a remote attacker to trigger an out-of-bounds read, potentially leading to information disclosure or further exploitation of the affected system.
Technical Details of CVE-2019-15505
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerability exists in the drivers/media/usb/dvb-usb/technisat-usb2.c file in the Linux kernel through version 5.2.9, enabling an out-of-bounds read via manipulated USB device traffic.
Affected Systems and Versions
- Linux kernel versions up to 5.2.9
Exploitation Mechanism
- Attackers can exploit this vulnerability by manipulating the traffic of a USB device, which can be done remotely using USBIP or USB redirector.
Mitigation and Prevention
Protecting systems from CVE-2019-15505 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply relevant security patches provided by the Linux kernel maintainers.
- Monitor and restrict USB device connections to trusted sources.
- Implement network segmentation to limit the impact of potential remote attacks.
Long-Term Security Practices
- Regularly update and patch the Linux kernel to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and mitigate potential risks.
Patching and Updates
- Stay informed about security advisories and updates from Linux distributions and the Linux kernel community to promptly apply patches and secure the system.