Vulnerability Description
In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dovecot | Dovecot | < 2.3.11.3 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Fedoraproject | Fedora | 31 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.htmlBroken Link
- https://dovecot.org/securityVendor Advisory
- https://lists.debian.org/debian-lts-announce/2020/08/msg00024.htmlThird 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
- https://www.openwall.com/lists/oss-security/2020/08/12/2ExploitMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.htmlBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.htmlBroken Link
- https://dovecot.org/securityVendor Advisory
FAQ
What is CVE-2020-12673?
CVE-2020-12673 is a vulnerability with a CVSS score of 7.5 (HIGH). In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.
How severe is CVE-2020-12673?
CVE-2020-12673 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-2020-12673?
Check the references section above for vendor advisories and patch information. Affected products include: Dovecot Dovecot, Debian Debian Linux, Canonical Ubuntu Linux, Fedoraproject Fedora.