Use After Free in Linux Kernel
CVE-2017-2584
arch/x86/kvm/emulate.c in the Linux kernel through 4.9.3 allows local users to obtain sensitive information from kernel memory or cause a denial of service (use-after-free) via a crafted application that leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securityfocus.com/bid/95430 (vdb-entry)
- www.securitytracker.com/id/1037603 (vdb-entry)
- usn.ubuntu.com/3754-1/ (vendor-advisory)
- github.com/torvalds/linux/commit/129a72a0d3c8e139a04512325384fe5ac119e74d
- www.debian.org/security/2017/dsa-3791 (vendor-advisory)
- www.openwall.com/lists/oss-security/2017/01/13/7 (mailing-list)
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/
- bugzilla.redhat.com/show_bug.cgi
Frequently asked questions
- What is CVE-2017-2584?
- CVE-2017-2584 is a high-severity vulnerability in Linux Kernel, classified under Information Disclosure. CVSS score: 7.1/10. Published 2017-01-15.
- How severe is CVE-2017-2584?
- High severity. CVSS v3 base score is 7.1 out of 10.
- Is CVE-2017-2584 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.