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CVE-2018-12886

N/A
Published: May 22, 2019 at 06:42 PM UTC
Updated: October 14, 2026 at 07:16 AM UTC
1 product affected across 1 vendorGCC

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Severity
N/A
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

GCC· Gnu
95%
All versions4.1 ≤ v ≤ 8.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://gcc.gnu.org/viewcvs/gcc/trunk/gcc/config/arm/arm-protos.h?revision=266379&view=markup
x_refsource_MISCExploitVendor Advisory
Source: [email protected]
https://www.gnu.org/software/gcc/gcc-8/changes.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-565386.html

CVSS

6.8MEDIUM[email protected]
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-209

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