CVE-2018-12930 : What You Need to Know
Discover the ntfs_end_buffer_async_read vulnerability in Linux kernel version 4.15.0, allowing attackers to trigger a stack-based out-of-bounds write operation, potentially leading to denial of service scenarios.
A vulnerability known as ntfs_end_buffer_async_read has been found in the ntfs.ko filesystem driver within the Linux kernel version 4.15.0, allowing attackers to trigger a stack-based out-of-bounds write operation. This flaw could lead to denial of service scenarios like kernel oops or panic.
Understanding CVE-2018-12930
This CVE entry describes a vulnerability in the Linux kernel that could be exploited by malicious actors to cause a denial of service or potentially other adverse effects.
What is CVE-2018-12930?
CVE-2018-12930 is a vulnerability in the ntfs.ko filesystem driver in Linux kernel version 4.15.0 that enables attackers to induce a stack-based out-of-bounds write operation, potentially resulting in a denial of service situation or other unspecified consequences.
The Impact of CVE-2018-12930
The vulnerability could lead to a denial of service scenario, such as a kernel panic or oops, when a specially crafted ntfs filesystem is used.
Technical Details of CVE-2018-12930
This section provides more technical insights into the vulnerability.
Vulnerability Description
The ntfs_end_buffer_async_read vulnerability in the ntfs.ko filesystem driver in Linux kernel 4.15.0 allows attackers to trigger a stack-based out-of-bounds write, leading to denial of service or potentially other impacts.
Affected Systems and Versions
- Affected System: Linux kernel version 4.15.0
- Affected Component: ntfs.ko filesystem driver
Exploitation Mechanism
The vulnerability can be exploited by using a maliciously crafted ntfs filesystem to induce a stack-based out-of-bounds write operation.
Mitigation and Prevention
Protecting systems from CVE-2018-12930 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply patches provided by the Linux kernel maintainers promptly.
- Monitor security advisories for updates and apply them as soon as they are available.
Long-Term Security Practices
- Regularly update the Linux kernel to the latest stable version to ensure all security patches are applied.
- Implement proper access controls and monitoring to detect and prevent unauthorized system access.
Patching and Updates
Regularly check for updates from the Linux kernel maintainers and apply patches to address CVE-2018-12930.