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CVE-2021-3657

CVE-2021-3657

EPSS 3.3%CWE-119
A flaw was found in mbsync versions prior to 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.
Affected products
n/a · isync

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References
https://bugzilla.redhat.com/show_bug.cgi?id=2028932https://lists.debian.org/debian-lts-announce/2022/07/msg00001.htmlhttps://security.gentoo.org/glsa/202208-15https://www.openwall.com/lists/oss-security/2021/12/03/1