#vulnerability

Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

Exposure of sensitive information to an unauthorized actor in Microsoft Exchange Server allows an unauthorized attacker to disclose information over a network.

**According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?** Exploitation of this vulnerability requires that a user trigger the payload in the application.

Improper access control in Azure File Sync allows an authorized attacker to elevate privileges locally.

Deserialization of untrusted data in Visual Studio allows an authorized attacker to execute code locally.

Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Dynamics 365 (on-premises) allows an unauthorized attacker to perform spoofing over a network.

Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.

**How could an attacker exploit the vulnerability?** An attacker could inject arbitrary T-SQL commands by crafting a malicious database name.

Improper privilege management in SQL Server allows an authorized attacker to elevate privileges locally.

### Details There's a parsing logic error in picklescan and modelscan while trying to deal with opcode `STACK_GLOBAL`. Function `_list_globals` when handling `STACK_GLOBAL` at position `n`, it is expected to track two arguments but in wrong range. The loop only consider the range from `1` to `n-1` but forgets to consider the opcode at position `0`. The correct range should be `0` to `n-1`. Attacker can put arg in position `0`, thus the parser can only tract one argument. Then, the exception https://github.com/mmaitre314/picklescan/blob/2a8383cfeb4158567f9770d86597300c9e508d0f/src/picklescan/scanner.py#L281 will be triggered. Thus it can cause detection bypass since the malicious pickle file will trigger unexpected exceptions. Example: ``` 0: S STRING 'os' --> arg 0: STRING (untracked argument due to wrong scanning range) 6: S STRING 'system' --> arg 1: STRING (tracked argument) 16: \x93 STACK_GLOBAL 17: S STRING 'ls' 23: \x85 TUPLE1 24: R RE...