Memory leak in Linux kernel - CVE-2019-18809
Published: January 21, 2020
Vulnerability identifier: #VU24442
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-2019-18809
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 "af9005_identify_state()" function in drivers/media/usb/dvb-usb/af9005.c in the Linux kernel through 5.3.9 allows a local user to cause a denial of service (memory consumption).
How to mitigate CVE-2019-18809
Install update from vendor's website.
Sources
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- https://github.com/torvalds/linux/commit/2289adbfa559050d2a38bcd9caac1c18b800e928
- 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/