SB2019111820 - Denial of service in Linux kernel
Published: November 18, 2019 Updated: January 17, 2020
Security Bulletin ID
SB2019111820
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2019-19079)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the qrtr_tun_write_iter() function in net/qrtr/tun.c in the Linux kernel before 5.3 allows a local user to cause a denial of service (memory consumption).
Remediation
Install update from vendor's website.