CVE-2018-5392 mingw-w64 version 5.0.4 by default produces executables that opt in to ASLR, but are not compatible with ASLR
MinGW-w64 generates executables claiming ASLR compatibility but lacking relocation tables, allowing attackers to bypass ASLR mitigations for easier exploitation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-5392?
CVE-2018-5392 is a high-severity vulnerability in mingw-w64, published on 14 Aug 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-824
Which versions are affected by CVE-2018-5392?
It affects 1 product.
Products include Mingw Mingw-W64.
How do I fix CVE-2018-5392?
No fix has been published for CVE-2018-5392 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-5392 being exploited?
There is no known exploitation of CVE-2018-5392 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2018-5392, ECHO-3985-4d70-6d87, GHSA-x4v8-qgp4-6739, UBUNTU-CVE-2018-5392.