What is CVE-2018-5392?

CVE-2018-5392 is a high-severity vulnerability in Mingw Mingw-W64, classified under Access of Uninitialized Pointer. CVSS score: 7.5/10. Published 2018-08-14.

How severe is CVE-2018-5392?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Mingw Mingw-W64

CVE-2018-5392

mingw-w64 version 5.0.4 by default produces executables that opt in to ASLR, but are not compatible with ASLR. ASLR is an exploit mitigation technique used by modern Windows platforms. For ASLR to function, Windows executables must contain a relocations table. Despite containing the "Dynamic base" PE header, which indicates ASLR compatibility, Windows executables produced by mingw-w64 have the relocations table stripped from them by default. This means that executables produced by mingw-w64 are vulnerable to return-oriented programming (ROP) attacks. Windows executables generated by mingw-w64 claim to be ASLR compatible, but are not. Vulnerabilities in such executables are more easily exploitable as a result.

EPSS: 0.014 (70.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Mingw Mingw-w64 — versions 5.0.4

Weakness classification (CWE)

CWE-824 — Access of Uninitialized Pointer

References

cret@cert.org (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-5392?: CVE-2018-5392 is a high-severity vulnerability in Mingw Mingw-W64, classified under Access of Uninitialized Pointer. CVSS score: 7.5/10. Published 2018-08-14.
How severe is CVE-2018-5392?: High severity. CVSS v3 base score is 7.5 out of 10.