CVE-2018-11236
9.8
CRITICAL
CVSS 3.1
EPSS 0.89%
Description
stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.
How to fix CVE-2018-11236
To remediate CVE-2018-11236, upgrade the affected package to a fixed version below.
- Debian/glibc—upgrade to 2.27-4 or later
Is CVE-2018-11236 being exploited?
Low — EPSS is 0.9%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.27-4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |