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CVE-2021-21828

Description

A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. In the default case of DecodeTreeBlock a label is created via CurPath::AddLabel in order to track the label for later reference. An attacker can provide a malicious file to trigger this vulnerability.

POC

Reference

- https://talosintelligence.com/vulnerability_reports/TALOS-2021-1291

Github

No PoCs found on GitHub currently.