#VU23487 Out-of-bounds read in Microsoft Office


Published: 2019-12-10

Vulnerability identifier: #VU23487

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-1400

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Microsoft Office
Client/Desktop applications / Office applications

Vendor: Microsoft

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in Microsoft Access. A local user can use a specially crafted application to trigger out-of-bounds read error and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft Office: 2019, 365 ProPlus, 2010 Service Pack 2, 2013 - 2013 RT


External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1400


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


Latest bulletins with this vulnerability