Out-of-bounds Read in Linux Kernel
CVE-2018-16885
A flaw was found in the Linux kernel that allows the userspace to call memcpy_fromiovecend() and similar functions with a zero offset and buffer length which causes the read beyond the buffer boundaries, in certain cases causing a memory access fault and a system halt by accessing invalid memory address. This issue only affects kernel version 3.10.x as shipped with Red Hat Enterprise Linux 7.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.6% 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
- The Linux Foundation Kernel — versions 3.10.x as shipped with Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux Server — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/106296 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2019:2043 (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:2029 (vendor-advisory)
Frequently asked questions
- What is CVE-2018-16885?
- CVE-2018-16885 is a medium-severity vulnerability in Linux Kernel, classified under Out-of-bounds Read. CVSS score: 4.7/10. Published 2019-01-03.
- How severe is CVE-2018-16885?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2018-16885 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.