Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dovecot | Dovecot | < 2.3.11.3 |
| Debian | Debian Linux | 9.0 |
| Fedoraproject | Fedora | 31 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2021/Jan/18Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/08/12/1ExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/04/3Mailing ListThird Party Advisory
- https://dovecot.org/securityVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00024.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202009-02Third Party Advisory
- https://usn.ubuntu.com/4456-1/Third Party Advisory
- https://usn.ubuntu.com/4456-2/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4745Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Jan/18Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/08/12/1ExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/01/04/3Mailing ListThird Party Advisory
FAQ
What is CVE-2020-12100?
CVE-2020-12100 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 nes...
How severe is CVE-2020-12100?
CVE-2020-12100 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-12100?
Check the references section above for vendor advisories and patch information. Affected products include: Dovecot Dovecot, Debian Debian Linux, Fedoraproject Fedora, Canonical Ubuntu Linux.