In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.
https://www.debian.org/security/2020/dsa-4745
https://usn.ubuntu.com/4456-2/
https://usn.ubuntu.com/4456-1/
https://security.gentoo.org/glsa/202009-02
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html
http://www.openwall.com/lists/oss-security/2021/01/04/3
http://seclists.org/fulldisclosure/2021/Jan/18
https://dovecot.org/security
http://www.openwall.com/lists/oss-security/2020/08/12/1
Source: Mitre, NVD
Published: 2020-08-12
Updated: 2024-11-21
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity: High
EPSS: 0.19947