#VU20106 Out-of-bounds write in Adobe Reader and Adobe Acrobat - CVE-2019-8027

Vulnerability identifier: #VU20106

Vulnerability risk: High

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-8027

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Adobe Reader
Client/Desktop applications / Office applications
Adobe Acrobat
Client/Desktop applications / Office applications

Vendor: Adobe

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the implementation of the Copy menu command in Protected View. A remote attacker can create a specially crafted PDF file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Reader: 2015.006.30306 - 2019.012.20035

Adobe Acrobat: 15.006.30306 - 15.006.30498, 17.009.20044 - 17.012.20098, 19.008.20071, 19.008.20080, 19.008.20081, 19.010.20064, 19.010.20069, 19.010.20091, 19.010.20098, 19.010.20100, 19.012.20034, 19.012.20035

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External links
https://helpx.adobe.com/security/products/acrobat/apsb19-41.html
https://www.zerodayinitiative.com/advisories/ZDI-19-745/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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