Memory leak in Linux kernel - CVE-2019-18812
Published: January 21, 2020
Vulnerability identifier: #VU24437
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2019-18812
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the "sof_dfsentry_write()" function in sound/soc/sof/debug.c in the Linux kernel through 5.3.9 allows a local user to cause a denial of service (memory consumption).
Affected software
Linux kernel
Fedora
kernel
Fedora
kernel
How to mitigate CVE-2019-18812
Install update from vendor's website.
Linux kernel - update to 5.3.10
kernel - addressed in versions 5.3.14-200.fc30, 5.3.14-300.fc31
kernel - addressed in versions 5.3.14-200.fc30, 5.3.14-300.fc31
External References
- https://github.com/torvalds/linux/commit/c0a333d842ef67ac04adc72ff79dc1ccc3dca4ed
- 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/