VULNERABILITY INTELLIGENCE

CVE-2018-12886

CVSS score8.1 HIGH
EPSS probability2.74%
CISA KEVNot currently listed
Published2019-05-22
Last modified2026-10-14
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

stack_protect_prologue in cfgexpand.c and stack_protect_epilogue in function.c in GNU Compiler Collection (GCC) 4.1 through 8 (under certain circumstances) generate instruction sequences when targeting ARM targets that spill the address of the stack protector guard, which allows an attacker to bypass the protection of -fstack-protector, -fstack-protector-all, -fstack-protector-strong, and -fstack-protector-explicit against stack overflow by controlling what the stack canary is compared against.

Weakness classification

  • CWE-209: Generation of Error Message Containing Sensitive Information

Primary references