CVE-2020-12673

high

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.

References

https://www.openwall.com/lists/oss-security/2020/08/12/2

https://www.debian.org/security/2020/dsa-4745

https://usn.ubuntu.com/4456-2/

https://usn.ubuntu.com/4456-1/

https://security.gentoo.org/glsa/202009-02

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/

https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html

https://dovecot.org/security

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html

Details

Source: Mitre, NVD

Published: 2020-08-12

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High