Information disclosure in Linux Kernel
CVE-2017-16994
The walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call.
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: 0.021 (80.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3617-1/ (vendor-advisory)
- usn.ubuntu.com/3619-2/ (vendor-advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Exploit, Patch, Issue Tracking)
- usn.ubuntu.com/3617-3/ (vendor-advisory)
- www.exploit-db.com/exploits/43178/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.2 (Release Notes)
- usn.ubuntu.com/3632-1/ (vendor-advisory)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch)
- access.redhat.com/errata/RHSA-2018:0502 (vendor-advisory)
- usn.ubuntu.com/3617-2/ (vendor-advisory)
Frequently asked questions
- What is CVE-2017-16994?
- CVE-2017-16994 is a medium-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 5.5/10. Published 2017-11-27.
- How severe is CVE-2017-16994?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2017-16994 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.