Memory leak in Linux kernel - CVE-2019-18811
Published: January 21, 2020
Vulnerability identifier: #VU24436
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2019-18811
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the "sof_set_get_large_ctrl_data()" function in sound/soc/sof/ipc.c in the Linux kernel through 5.3.9 allows a local user to cause a denial of service (memory consumption) by triggering "sof_get_ctrl_copy_params()" failures.
How to mitigate CVE-2019-18811
Install update from vendor's website.
Sources
- https://github.com/torvalds/linux/commit/45c1380358b12bf2d1db20a5874e9544f56b34ab
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
- https://security.netapp.com/advisory/ntap-20191205-0001/