CVE-2020-24386 Information

Description

An issue was discovered in Dovecot before 2.3.13. By using IMAP IDLE an authenticated attacker can trigger unhibernation via attacker-controlled parameters leading to access to other users’ email messages (and path disclosure).

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N

Reference

https://dovecot.org/security https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html http://www.openwall.com/lists/oss-security/2021/01/04/4 https://doc.dovecot.org/configuration_manual/hibernation/ https://www.debian.org/security/2021/dsa-4825 http://seclists.org/fulldisclosure/2021/Jan/18 http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.html https://security.gentoo.org/glsa/202101-01 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.8