Use After Free in Linux Kernel
CVE-2018-14625
A flaw was found in the Linux Kernel where an attacker may be able to have an uncontrolled read to kernel-memory from within a vm guest. A race condition between connect() and close() function may allow an attacker using the AF_VSOCK protocol to gather a 4 byte information leak or possibly intercept or corrupt AF_VSOCK messages destined to other clients.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.003 (24.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.3% 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
- [Unknown] Kernel
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3872-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3878-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3871-5/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3878-2/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3871-4/ (vendor-advisory, Third Party Advisory)
- syzkaller.appspot.com/bug (Third Party Advisory)
- usn.ubuntu.com/3871-1/ (vendor-advisory, Third Party Advisory)
- usn.ubuntu.com/3871-3/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/05/msg00002.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-14625?
- CVE-2018-14625 is a medium-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 5.3/10. Published 2018-09-10.
- How severe is CVE-2018-14625?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2018-14625 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.