Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dovecot | Dovecot | >= 2.2.26, < 2.3.13 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 32 |
References
- http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.htmlMailing ListThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2021/Jan/18Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/04/4Mailing ListThird Party Advisory
- https://doc.dovecot.org/configuration_manual/hibernation/Vendor Advisory
- https://dovecot.org/pipermail/dovecot-news/2021-January/000450.htmlMailing ListVendor Advisory
- https://dovecot.org/securityVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202101-01Third Party Advisory
- https://www.debian.org/security/2021/dsa-4825Third Party Advisory
- http://packetstormsecurity.com/files/160842/Dovecot-2.3.11.3-Access-Bypass.htmlMailing ListThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2021/Jan/18Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/04/4Mailing ListThird Party Advisory
- https://doc.dovecot.org/configuration_manual/hibernation/Vendor Advisory
- https://dovecot.org/pipermail/dovecot-news/2021-January/000450.htmlMailing ListVendor Advisory
- https://dovecot.org/securityVendor Advisory
FAQ
What is CVE-2020-24386?
CVE-2020-24386 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 me...
How severe is CVE-2020-24386?
CVE-2020-24386 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-24386?
Check the references section above for vendor advisories and patch information. Affected products include: Dovecot Dovecot, Debian Debian Linux, Fedoraproject Fedora.