Vulnerability Spotlight: Adobe Acrobat DC use-after-free issues could lead to arbitrary code execution
Summary: Cisco Talos discovered two use-after-free vulnerabilities in Adobe Acrobat Reader DC that could let an attacker execute arbitrary code, both tied to how the reader processes JavaScript in PDFs. TALOS-2022-1516 (CVE-2022-34221) is a type confusion issue triggered by opening a PDF with specially crafted malicious JavaScript, and TALOS-2022-1525 (CVE-2022-34230) can trigger reuse of a freed object; Adobe has released an update, with version 2022.001.20085 confirmed affected.
What you should know: The entry point is a PDF opened by a user, and Acrobat Reader is one of the most widely installed PDF readers, so a single malicious file reaching a workstation is the whole attack. Snort rules 59644, 59645, 59942 and 59943 exist to catch exploitation attempts, but detection only helps if the update to Acrobat Reader has not already closed the path.
Read the original at Cisco Talos ↗
- Topics
- Vulnerabilities & Patching
- Mentions
- CVE-2022-34221CVE-2022-34230
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