CVE-2019-1151 Microsoft Graphics Remote Code Execution Vulnerability
Remote attackers can execute arbitrary code by tricking users into viewing malicious websites or opening crafted documents containing embedded fonts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-1151?
CVE-2019-1151 is a high-severity memory corruption vulnerability in Microsoft Office, published on 14 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A remote code execution vulnerability exists when the Windows font library improperly handles specially crafted embedded fonts. An attacker who successfully exploited the vulnerability could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. There are multiple ways an attacker could exploit the vulnerability:
In a web-based attack scenario, an attacker could host a specially crafted website that is designed to exploit the vulnerability and then convince users to view the website. An attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically by getting them to click a link in an email or instant message that takes users to the attacker's website, or by opening an attachment sent through email. In a file-sharing attack scenario, an attacker could provide a specially crafted document file designed to exploit the vulnerability and then convince users to open the document file.
The security update addresses the vulnerability by correcting how the Windows font library handles embedded fonts.
Weakness: CWE-787
Which versions are affected by CVE-2019-1151?
It affects 9 products.
Products include Microsoft Office, Microsoft Windows 10, Microsoft Windows 7, Microsoft Windows 8.1, Microsoft Windows Rt 8.1, Microsoft Windows Server 2008 and 3 more.
How do I fix CVE-2019-1151?
No fix has been published for CVE-2019-1151 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-1151 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-1151 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Office
Sources
Also known as GHSA-9j6q-fhff-rr4p.