SB2019112720 - Out-of-bounds write in Linux kernel
Published: November 27, 2019 Updated: June 1, 2020
Security Bulletin ID
SB2019112720
CSH 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 vulnerability.
1) Out-of-bounds write (CVE-ID: CVE-2019-14896)
CWE-ID: CWE-787 - Out-of-bounds write
CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP.
Remediation
Install update from vendor's website.
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.212
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.212
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.169
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.100
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.16