CVE-2017-8070 : What You Need to Know
Discover the impact of CVE-2017-8070, a flaw in Linux kernel version 4.9.x before 4.9.11 allowing denial of service and memory corruption. Learn about affected systems and mitigation steps.
This CVE-2017-8070 article provides insights into a vulnerability in the Linux kernel version 4.9.x before 4.9.11 that could lead to denial of service and other potential consequences.
Understanding CVE-2017-8070
What is CVE-2017-8070?
The flaw in the interaction between drivers/net/usb/catc.c and the CONFIG_VMAP_STACK option in the Linux kernel version 4.9.x before 4.9.11 allows local users to potentially cause a denial of service or memory corruption.
The Impact of CVE-2017-8070
This vulnerability could result in a system crash, memory corruption, or other unspecified consequences by utilizing multiple virtual pages for a scatterlist in DMA operations.
Technical Details of CVE-2017-8070
Vulnerability Description
The flaw in drivers/net/usb/catc.c in the Linux kernel 4.9.x before 4.9.11 incorrectly interacts with the CONFIG_VMAP_STACK option, enabling local users to trigger a denial of service or memory corruption.
Affected Systems and Versions
- Product: n/a
- Vendor: n/a
- Versions: Linux kernel 4.9.x before 4.9.11
Exploitation Mechanism
The vulnerability can be exploited by leveraging the use of more than one virtual page for a DMA scatterlist.
Mitigation and Prevention
Immediate Steps to Take
- Apply patches provided by the Linux kernel maintainers promptly.
- Monitor official sources for updates and security advisories.
Long-Term Security Practices
- Regularly update the Linux kernel to the latest stable version.
- Implement least privilege access controls to limit the impact of potential vulnerabilities.
Patching and Updates
Stay informed about security patches and updates released by the Linux kernel community to address this vulnerability.