CVE-2017-18050 : What You Need to Know

Android for MSM, Firefox OS for MSM, QRD Android, and all Android releases from CAF are affected by a vulnerability due to improper input validation in the Linux kernel. This can lead to buffer overwrite and out-of-bounds memory read.

Understanding CVE-2017-18050

This CVE identifies a security flaw in various Android platforms that could potentially be exploited by attackers.

What is CVE-2017-18050?

The vulnerability arises from improper input validation in the function wma_tbttoffset_update_event_handler() in Android for MSM, Firefox OS for MSM, QRD Android, and all Android releases from CAF. The issue specifically lies in the parameter vdev_map obtained from firmware.

The Impact of CVE-2017-18050

The vulnerability poses a risk of buffer overwrite and out-of-bounds memory read, which could be exploited by malicious actors to execute arbitrary code or cause a denial of service.

Technical Details of CVE-2017-18050

This section delves into the technical aspects of the CVE.

Vulnerability Description

Improper input validation for vdev_map in wma_tbttoffset_update_event_handler(), sourced from firmware, can result in buffer overwrite and out-of-bounds memory read.

Affected Systems and Versions

Android for MSM
Firefox OS for MSM
QRD Android
All Android releases from CAF

Exploitation Mechanism

The vulnerability can be exploited by manipulating the vdev_map parameter obtained from firmware, leading to buffer overwrite and out-of-bounds memory read.

Mitigation and Prevention

Protecting systems from CVE-2017-18050 requires immediate action and long-term security practices.

Immediate Steps to Take

Apply patches provided by the respective vendors promptly.
Monitor vendor security bulletins for updates and advisories.

Long-Term Security Practices

Implement strict input validation mechanisms in software development.
Conduct regular security assessments and audits to identify vulnerabilities.

Patching and Updates

Regularly update systems with the latest security patches and firmware releases to mitigate the risk of exploitation.