CVE-2017-8061 Explained : Impact and Mitigation
Learn about CVE-2017-8061, a vulnerability in Linux kernel versions 4.9.x and 4.10.x before 4.10.7. Understand the impact, affected systems, exploitation mechanism, and mitigation steps.
This CVE entry pertains to a vulnerability in the Linux kernel versions 4.9.x and 4.10.x prior to 4.10.7. The flaw is related to improper interaction with the CONFIG_VMAP_STACK option in a specific file, potentially leading to denial of service or other consequences.
Understanding CVE-2017-8061
This section provides insights into the nature and impact of the CVE-2017-8061 vulnerability.
What is CVE-2017-8061?
The vulnerability in the Linux kernel versions 4.9.x and 4.10.x before 4.10.7 arises from incorrect interaction with the CONFIG_VMAP_STACK option. Local users can exploit this flaw to trigger a denial of service or memory corruption by utilizing multiple virtual pages for a DMA scatterlist.
The Impact of CVE-2017-8061
The vulnerability can result in a system crash, memory corruption, or other unspecified consequences when exploited by local users. It poses a risk to the stability and integrity of affected systems.
Technical Details of CVE-2017-8061
Explore the technical aspects of CVE-2017-8061 to understand its implications and scope.
Vulnerability Description
The issue originates from the drivers/media/usb/dvb-usb/dvb-usb-firmware.c file in the Linux kernel, where incorrect interaction with the CONFIG_VMAP_STACK option occurs. This allows local users to disrupt system operations or potentially cause other impacts.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Linux kernel 4.9.x and 4.10.x prior to 4.10.7
Exploitation Mechanism
The vulnerability can be exploited by local users leveraging the use of more than one virtual page for a DMA scatterlist, leading to a denial of service or memory corruption.
Mitigation and Prevention
Discover the steps to mitigate and prevent the CVE-2017-8061 vulnerability.
Immediate Steps to Take
- Apply the necessary patches and updates provided by the Linux kernel maintainers.
- Monitor official sources for security advisories related to this vulnerability.
Long-Term Security Practices
- Implement the principle of least privilege to restrict user access and actions.
- Conduct regular security audits and assessments to identify and address potential vulnerabilities.
Patching and Updates
- Ensure timely installation of security patches released by the Linux kernel development team.