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CVE-2020-12673

Good to know:

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Date: August 12, 2020

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.

Language: C

Severity Score

Related Resources (21)

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00059.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00048.html
https://nvd.nist.gov/vuln/detail/CVE-2020-12673
https://dovecot.org/security
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EYZU6CHA3VMYYAUCMHSCCQKJEVEIKPQ2/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-12673
https://security.alpinelinux.org/vuln/CVE-2020-12673
https://security-tracker.debian.org/tracker/CVE-2020-12673
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
https://www.debian.org/security/2020/dsa-4745
https://usn.ubuntu.com/4456-2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4AAX2MJEULPVSRZOBX3PNPFSYP4FM4TT/
https://usn.ubuntu.com/4456-1/
https://access.redhat.com/security/cve/CVE-2020-12673
https://www.openwall.com/lists/oss-security/2020/08/12/2
https://security.gentoo.org/glsa/202009-02
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XKKAL3OMG76ZZ7CIEMQP2K6KCTD2RAKE/
https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html
https://www.mend.io/vulnerability-database/CVE-2020-12673

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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