Information disclosure in Linux Kernel
CVE-2018-20449
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (36.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Linux Kernel — versions 4.14.90
- NetApp Element Software Management Node
Weakness classification (CWE)
References
- elixir.bootlin.com/linux/v4.14.90/source/drivers/dma/qcom/hidma_dbg.c (Patch, Third Party Advisory)
- www.mail-archive.com/debian-security-tracker@lists.debian.org/msg03808.html
- security.netapp.com/advisory/ntap-20190502-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-20449?
- CVE-2018-20449 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 5.5/10. Published 2019-04-04.
- How severe is CVE-2018-20449?
- Medium severity. CVSS v3 base score is 5.5 out of 10.