Vulnerability identifier: #VU13744

Vulnerability risk: Low

CVSSv3.1: 4.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-12767

CWE-ID: CWE-125

Exploitation vector: Network

Exploit availability: Yes

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 gain access to sensitive information.

The vulnerability exists due to a boundary error when processing .pdf files in the Joint Bi-Level Image Experts Group (JBIG) segment decoder module. A remote attacker can trick the user into opening a specially crafted .pdf file, trigger an out-of-bounds read error and gain access to sensitive information stored in memory or cause application crash.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Adobe Reader: 2018.009.20044 - 2018.011.20040, 2017.009.20044 - 2017.012.20098, 2015.006.30306 - 2015.006.30418

Adobe Acrobat: 17.009.20044 - 17.012.20098, 15.006.30306 - 15.006.30418

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External links
http://helpx.adobe.com//security/products/acrobat/apsb18-21.html

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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. However, proof of concept for this vulnerability is available.