Microsoft today released the latest batch of software security updates for all supported versions of its Windows operating systems and other products that patch a total of 113 new security vulnerabilities, 17 of which are critical and 96 rated important in severity.
Two of the security flaws have been reported as being publicly known at the time of release, and four are being reported as actively exploited in the wild. One of the four zero-day bugs purported to impact Internet Explorer (CVE-2020-0968) has been revised to indicate Microsoft has not yet received reports of it being used in active attacks. However, Microsoft stated in the advisory that the bug is likely to be exploited soon.
Technical Details
Below is a collection of vulnerabilities patched in the latest update that Microsoft rated as severe. The capabilities as CVE identifiers is included for your awareness.
CVE-2020-1020 | ADOBE FONT MANAGER LIBRARY REMOTE CODE EXECUTION VULNERABILITY
A remote code execution vulnerability that affects users when the Windows Adobe Type Manager Library improperly handles a multi-master font - Adobe Type 1 PostScript format. An attacker who successfully exploited the vulnerability could execute code in an AppContainer sandbox context with limited privileges and capabilities.
CVE-2020-1027 | WINDOWS KERNEL ELEVATION OF PRIVILEGE VULNERABILITY
An elevation of privilege vulnerability exists that exploits how the Windows Kernel handles objects in memory. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.
CVE-2020-0968 | SCRIPTING ENGINE MEMORY CORRUPTION VULNERABILITY
A remote code execution vulnerability affects how the Microsoft scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full administrative rights.
Recommended Mitigations
Windows users and system administrators are highly advised to apply the latest security patch as soon as possible in order to prevent these critical vulnerabilities from being executed on any machines under your control.
