SB2019090435 - Use-after-free in Linux kernel
Published: September 4, 2019 Updated: September 5, 2019
Security Bulletin ID
SB2019090435
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2019-15919)
CWE-ID: CWE-416 - Use After Free
CVSSv4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the "SMB2_write" in "fs/cifs/smb2pdu.c". A local authenticated user can cause a use-after-free condition and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.