An exploitable buffer overflow vulnerability exists in the tag parsing functionality of Ledger-CLI 3.1.1. A specially crafted journal file can cause an integer underflow resulting in code execution. An attacker can construct a malicious journal file to trigger this vulnerability.
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0303
- https://github.com/andir/nixos-issue-db-example