CVE-2018-7249 Use after free in n/a
An unprivileged attacker can exploit a race condition in the secdrv.sys driver to achieve arbitrary code execution in the kernel.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-7249?
CVE-2018-7249 is a high-severity use after free vulnerability in Microsoft Windows 7, published on 26 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in secdrv.sys as shipped in Microsoft Windows Vista, Windows 7, Windows 8, and Windows 8.1 before KB3086255, and as shipped in Macrovision SafeDisc. Two carefully timed calls to IOCTL 0xCA002813 can cause a race condition that leads to a use-after-free. When exploited, an unprivileged attacker can run arbitrary code in the kernel.
Which versions are affected by CVE-2018-7249?
It affects 5 products.
Products include Microsoft Windows 7, Microsoft Windows 8, Microsoft Windows 8.1, Microsoft Windows Vista, Tivo Safedisc.
How do I fix CVE-2018-7249?
No fix has been published for CVE-2018-7249 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2018-7249 being exploited?
There is no known exploitation of CVE-2018-7249 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Microsoft Windows 7
- CVE-2015-1635 Microsoft HTTP.sys Remote Code Execution
- CVE-2015-2360 Microsoft Win32k Privilege Escalation
- CVE-2014-6324 Microsoft Kerberos Key Distribution Center (KDC) Privilege Escalation
- CVE-2014-6332 Microsoft Windows Object Linking & Embedding (OLE) Automation Array Remote Code Execution
- CVE-2014-4148 Microsoft Windows Remote Code Execution
Sources
Also known as GHSA-9357-692c-cj9m.