SB2019112912 - Out-of-bounds write in Linux kernel
Published: November 29, 2019 Updated: June 1, 2020
Security Bulletin ID
SB2019112912
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2019-14895)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A heap-based buffer overflow was discovered in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service (system crash) or possibly execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.210
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.210
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.165
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.96
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.12
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5