Candidate: CVE-2021-3657 PublicDate: 2022-02-18 18:15:00 UTC References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3657 https://www.openwall.com/lists/oss-security/2021/12/03/1 Description: 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. Ubuntu-Description: Notes: Mitigation: Bugs: Priority: medium Discovered-by: Assigned-to: CVSS: nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H [9.8 CRITICAL] Patches_isync: upstream_isync: needs-triage trusty_isync: ignored (out of standard support) xenial_isync: ignored (out of standard support) bionic_isync: needed focal_isync: needed hirsute_isync: ignored (reached end-of-life) impish_isync: needed jammy_isync: needed devel_isync: needed