Cyber Risks · Cisco Talos

Vulnerability Spotlight: Multiple vulnerabilities in Nitro Pro PDF reader

Summary: Cisco Talos discovered multiple code execution vulnerabilities in Nitro Pro PDF reader versions 13.13.2.242 and 13.16.2.300, including an indexed ColorSpace buffer miscalculation (CVE-2020-6116), an ICCBased ColorSpace heap-based buffer overflow (CVE-2020-6146), a JPEG2000 stripe sub-sample out-of-bounds write (CVE-2020-6112), an object stream parsing integer overflow (CVE-2020-6113), and a cross-reference table use-after-free (CVE-2020-6115). Each flaw requires a victim to load a specially crafted document, and Talos worked with Nitro Pro under its coordinated disclosure policy to resolve the issues and release an update.

Key Takeaway: Five separate memory-corruption paths in a single PDF reader mean a single malicious document can hand an adversary code execution on the victim's machine, and Talos confirmed both 13.13.2.242 and 13.16.2.300 are affected.

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Topics
Vulnerabilities & Patching
Mentions
CVE-2020-6112CVE-2020-6113CVE-2020-6115CVE-2020-6116CVE-2020-6146
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