CVE-2018-16885
kernel: out-of-bound read in memcpy_fromiovecend()
Severity
ImportantRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · December 21, 2018
Updated · June 30, 2026
Description
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. This can cause a read beyond the buffer boundaries flaw and, in certain cases, cause a memory access fault and a system halt by accessing invalid memory address.
Statement
This is an Important flaw in the Linux kernel that allows a local unprivileged user to trigger an out-of-bounds read. Successful exploitation could lead to a system halt, or potentially disclose kernel memory to userspace, but the high attack complexity makes it difficult to reliably achieve. Exploit code for this vulnerability is available.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 7.1CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 · Out-of-bounds Read