CVE-2019-1023 Scripting Engine Information Disclosure Vulnerability
An attacker can trick a user into visiting a malicious site to leak memory information from the Microsoft Edge scripting engine, aiding further system compromise.
- 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-2019-1023?
CVE-2019-1023 is a medium-severity vulnerability in Microsoft Chakracore, published on 12 Jun 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
An information disclosure vulnerability exists when the scripting engine does not properly handle objects in memory in Microsoft Edge. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system. In a web-based attack scenario, an attacker could host a website in an attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site. The security update addresses the vulnerability by changing how the scripting engine handles objects in memory.
Weakness: CWE-200
Which versions are affected by CVE-2019-1023?
It affects 2 products.
Products include Microsoft Chakracore, Microsoft Edge.
How do I fix CVE-2019-1023?
No fix has been published for CVE-2019-1023 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-1023 being exploited?
There is no known exploitation of CVE-2019-1023 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Chakracore
Sources
Also known as GHSA-vvjq-jmj5-8cj7.