VULNERABILITY INTELLIGENCE

CVE-2018-11236

CVSS score9.8 CRITICAL
EPSS probability7.05%
CISA KEVNot currently listed
Published2018-05-18
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • CWE-190: Integer Overflow or Wraparound
  • CWE-787: Out-of-bounds Write

Primary references