CVE-2019-19073 : Security Advisory and Response
Learn about CVE-2019-19073, a memory leak vulnerability in the Linux kernel up to version 5.3.11, allowing denial of service attacks by triggering specific functions. Find mitigation steps and long-term security practices here.
The Linux kernel version up to 5.3.11 has memory leak issues in drivers/net/wireless/ath/ath9k/htc_hst.c, allowing attackers to trigger denial of service by exploiting specific functions.
Understanding CVE-2019-19073
This CVE identifies memory leak vulnerabilities in the Linux kernel that can lead to denial of service attacks.
What is CVE-2019-19073?
Memory leak issues in the Linux kernel up to version 5.3.11 can be exploited by attackers to cause denial of service by triggering failures in specific functions.
The Impact of CVE-2019-19073
- Attackers can exploit these vulnerabilities to cause a denial of service by triggering failures in wait_for_completion_timeout()
- Affected functions include htc_config_pipe_credits(), htc_setup_complete(), and htc_connect_service()
Technical Details of CVE-2019-19073
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows attackers to cause a denial of service by triggering memory leaks in specific functions of the Linux kernel.
Affected Systems and Versions
- Linux kernel versions up to 5.3.11
Exploitation Mechanism
- Attackers exploit memory leak issues in drivers/net/wireless/ath/ath9k/htc_hst.c
Mitigation and Prevention
Protecting systems from CVE-2019-19073 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply patches provided by the Linux kernel maintainers
- Monitor for any unusual memory consumption patterns
Long-Term Security Practices
- Regularly update the Linux kernel to the latest stable version
- Implement network segmentation to contain potential attacks
Patching and Updates
- Stay informed about security advisories and apply patches promptly