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vulnerability

Arch Linux: Arbitrary code execution (CVE-2021-3657)

Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Feb 18, 2022
Added
Jul 11, 2025
Modified
Mar 25, 2026

Description

A security issue was found in mbsync in isync versions before 1.4.4. Due to inadequate handling of extremely large (>=2GiB) IMAP literals, malicious or compromised IMAP servers, and hypothetically even external email senders, could cause several different buffer overflows, which could conceivably be exploited for remote code execution.

Solution

arch-linux-upgrade-latest
Title
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