CVE-2018-20449 Information disclosure in n/a
Local attackers can read sensitive address information from debugfs files in the Linux kernel's HIDMA driver, potentially aiding further exploitation.
- 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-2018-20449?
CVE-2018-20449 is a medium-severity vulnerability in Linux kernel, published on 4 Apr 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The hidma_chan_stats function in drivers/dma/qcom/hidma_dbg.c in the Linux kernel 4.14.90 allows local users to obtain sensitive address information by reading "callback=" lines in a debugfs file.
Weakness: CWE-200
Which versions are affected by CVE-2018-20449?
It affects 2 products.
Products include Linux kernel, Netapp Element Software Management Node.
How do I fix CVE-2018-20449?
Apply the vendor's patch.
Is CVE-2018-20449 being exploited?
There is no known exploitation of CVE-2018-20449 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2018-20449, GHSA-cx2c-r978-5vg7, UBUNTU-CVE-2018-20449.