CVE-2019-20095 Denial of service in n/a
A memory leak in the Marvell mwifiex driver allows attackers to cause a denial of service by triggering error-handling cases that fail to free allocated memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-20095?
CVE-2019-20095 is a medium-severity denial of service vulnerability in Linux kernel, published on 30 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c in the Linux kernel before 5.1.6 has some error-handling cases that did not free allocated hostcmd memory, aka CID-003b686ace82. This will cause a memory leak and denial of service.
Weakness: CWE-401
Which versions are affected by CVE-2019-20095?
It affects 14 products.
Products include Linux kernel, Netapp 8300 Firmware, Netapp 8700 Firmware, Netapp A400 Firmware, Netapp A700s Firmware, Netapp Active Iq Unified Manager and 8 more.
How do I fix CVE-2019-20095?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-20095 being exploited?
There is no known exploitation of CVE-2019-20095 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2019-20095, GHSA-vc4c-8vcq-gmvh, UBUNTU-CVE-2019-20095.