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CVE-2021-44143

Description

A flaw was found in mbsync in isync 1.4.0 through 1.4.3. Due to an unchecked condition, a malicious or compromised IMAP server could use a crafted mail message that lacks headers (i.e., one that starts with an empty line) to provoke a heap overflow, which could conceivably be exploited for remote code execution.

POC

Reference

- https://sourceforge.net/p/isync/isync/commit_browser

Github

No PoCs found on GitHub currently.