Medium severity6.8NVD Advisory· Published Jan 4, 2021· Updated Jun 17, 2026
CVE-2020-24386
CVE-2020-24386
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).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
38cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*range: >=2.2.26,<2.3.13
- (no CPE)range: <2.3.13
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- Dovecot/Dovecotdescription
- osv-coords33 versionspkg:rpm/almalinux/dovecotpkg:rpm/almalinux/dovecot-develpkg:rpm/almalinux/dovecot-mysqlpkg:rpm/almalinux/dovecot-pgsqlpkg:rpm/almalinux/dovecot-pigeonholepkg:rpm/opensuse/dovecot23&distro=openSUSE%20Leap%2015.1pkg:rpm/opensuse/dovecot23&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/dovecot23&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/dovecot24&distro=openSUSE%20Tumbleweedpkg:rpm/suse/dovecot22&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/dovecot22&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/dovecot22&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/dovecot22&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/dovecot22&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/dovecot22&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/dovecot22&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/dovecot22&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP1pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/dovecot23&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015
< 1:2.3.8-9.el8+ 32 more
- (no CPE)range: < 1:2.3.8-9.el8
- (no CPE)range: < 1:2.3.8-9.el8
- (no CPE)range: < 1:2.3.8-9.el8
- (no CPE)range: < 1:2.3.8-9.el8
- (no CPE)range: < 1:2.3.8-9.el8
- (no CPE)range: < 2.3.11.3-lp151.2.15.1
- (no CPE)range: < 2.3.11.3-lp152.2.6.1
- (no CPE)range: < 2.3.16-1.6
- (no CPE)range: < 2.4.0-1.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.2.31-19.25.1
- (no CPE)range: < 2.3.11.3-4.32.1
- (no CPE)range: < 2.3.11.3-4.32.1
- (no CPE)range: < 2.3.11.3-21.1
- (no CPE)range: < 2.3.11.3-17.5.1
- (no CPE)range: < 2.3.11.3-4.32.1
- (no CPE)range: < 2.3.11.3-4.32.1
Patches
Vulnerability mechanics
References
9- packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.htmlnvdMailing ListThird Party AdvisoryVDB Entry
- seclists.org/fulldisclosure/2021/Jan/18nvdMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2021/01/04/4nvdMailing ListThird Party Advisory
- doc.dovecot.org/configuration_manual/hibernation/nvdVendor Advisory
- dovecot.org/pipermail/dovecot-news/2021-January/000450.htmlnvdMailing ListVendor Advisory
- dovecot.org/securitynvdVendor Advisory
- security.gentoo.org/glsa/202101-01nvdThird Party Advisory
- www.debian.org/security/2021/dsa-4825nvdThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXDKFLOCUP7I4ELGQ2F4P5TGC6NXMYV7/nvd
News mentions
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