CVE-2020-24386

Published: Jan 4, 2021Modified: Jun 17, 2026

6.8

Vector

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

Exploitability: 1.6 / Impact: 5.2

Source: NVD

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).

Affected (3)

Products: Dovecot: Dovecot · Debian: Debian Linux · Fedoraproject: Fedora

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Dovecot Dovecot	From 2.2.26 to 2.3.13

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0

Configuration C

1 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 32

References (18)

http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.html

Source: cve@mitre.org

Mailing ListThird Party AdvisoryVDB Entry

http://seclists.org/fulldisclosure/2021/Jan/18

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/01/04/4

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://doc.dovecot.org/configuration_manual/hibernation/

Source: cve@mitre.org

Vendor Advisory

https://dovecot.org/pipermail/dovecot-news/2021-January/000450.html

Source: cve@mitre.org

Mailing ListVendor Advisory

https://dovecot.org/security

Source: cve@mitre.org

Vendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/

Source: cve@mitre.org

https://security.gentoo.org/glsa/202101-01

Source: cve@mitre.org

Third Party Advisory

https://www.debian.org/security/2021/dsa-4825

Source: cve@mitre.org

Third Party Advisory

http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.html