Out-of-bounds Read in Linux Kernel
CVE-2017-9985
The snd_msndmidi_input_read function in sound/isa/msnd/msnd_midi.c in the Linux kernel through 4.11.7 allows local users to cause a denial of service (over-boundary access) or possibly have unspecified other impact by changing the value of a message queue head pointer between two kernel reads of that value, aka a "double fetch" vulnerability.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Linux Kernel
- Canonical Ubuntu Linux — versions 14.04
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.kernel.org/show_bug.cgi (Issue Tracking)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Vendor Advisory)
- www.securityfocus.com/bid/99335 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3754-1/ (vendor-advisory, Third Party Advisory)
- github.com/torvalds/linux/commit/20e2b791796bd68816fa115f12be5320de2b8021 (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-9985?
- CVE-2017-9985 is a high-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2017-06-28.
- How severe is CVE-2017-9985?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-9985 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.