Vulnerability identifier: #VU34802

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-10223

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Nitro Pro
Client/Desktop applications / Office applications

Vendor: Nitro Software, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

npdf.dll in Nitro Pro before 13.13.2.242 is vulnerable to JBIG2Decode CNxJBIG2DecodeStream Heap Corruption at npdf!CAPPDAnnotHandlerUtils::create_popup_for_markup+0x12fbe via a crafted PDF document.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Nitro Pro: 13.2.2.25 - 13.9.1.155

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External links
http://github.com/nafiez/nafiez.github.io/blob/master/_posts/2020-03-05-fuzzing-heap-corruption-nitro-pdf-vulnerability.md
http://nafiez.github.io/security/vulnerability/corruption/fuzzing/2020/03/05/fuzzing-heap-corruption-nitro-pdf-vulnerability.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.