CVE-2020-12673

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2020-12673
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12673.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-12673
Downstream
ALPINE (1)
CLSA (2)
DEBIAN (1)
MGASA (1)
openSUSE (4)
RHSA (4)
SUSE (4)
UBUNTU (1)
Related
openSUSE (4)
SUSE (4)
Published
2020-08-12T16:15:11Z
Modified
2026-10-16T02:47:40Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*"
            ],
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "14.04"
                        },
                        {
                            "last_affected": "14.04"
                        },
                        {
                            "introduced": "16.04"
                        },
                        {
                            "last_affected": "16.04"
                        },
                        {
                            "introduced": "18.04"
                        },
                        {
                            "last_affected": "18.04"
                        },
                        {
                            "introduced": "20.04"
                        },
                        {
                            "last_affected": "20.04"
                        }
                    ],
                    "source": "CPE_STRING"
                }
            ],
            "vendor_product": "canonical:ubuntu_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "9.0"
                        },
                        {
                            "last_affected": "9.0"
                        },
                        {
                            "introduced": "10.0"
                        },
                        {
                            "last_affected": "10.0"
                        }
                    ],
                    "source": "CPE_STRING"
                }
            ],
            "vendor_product": "debian:debian_linux"
        },
        {
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "range": [
                        {
                            "introduced": "31"
                        },
                        {
                            "last_affected": "31"
                        },
                        {
                            "introduced": "32"
                        },
                        {
                            "last_affected": "32"
                        },
                        {
                            "introduced": "33"
                        },
                        {
                            "last_affected": "33"
                        }
                    ],
                    "source": "CPE_STRING"
                }
            ],
            "vendor_product": "fedoraproject:fedora"
        }
    ]
}
References

Affected packages

Git / github.com/dovecot/core

Affected ranges

Type
GIT
Repo
https://github.com/dovecot/core
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
502c39af9375c2739ce01f93afd0d01c836613fd
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "2.3.11.3"
                }
            ],
            "source": "CPE_RANGE"
        }
    ]
}

Affected versions

1.*
1.1.alpha1
1.1.alpha2
1.1.alpha4
1.1.alpha5
1.1.alpha6
1.1.beta1
1.1.beta10
1.1.beta11
1.1.beta12
1.1.beta13
1.1.beta14
1.1.beta16
1.1.beta2
1.1.beta3
1.1.beta4
1.1.beta5
1.1.beta6
1.1.beta8
1.1.beta9
1.1.rc1
1.1.rc2
1.1.rc3
1.2.alpha1
1.2.alpha2
1.2.alpha3
1.2.alpha4
1.2.alpha5
1.2.beta1
1.2.beta2
1.2.beta3
1.2.beta4
1.2.rc1
2.*
2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.alpha1
2.0.alpha2
2.0.alpha3
2.0.beta1
2.0.beta2
2.0.beta3
2.0.beta4
2.0.beta5
2.0.beta6
2.0.rc1
2.0.rc2
2.0.rc3
2.0.rc4
2.0.rc5
2.0.rc6
2.1.alpha1
2.1.alpha2
2.1.beta1
2.1.rc1
2.1.rc2
2.1.rc3
2.1.rc4
2.1.rc5
2.1.rc6
2.2.0
2.2.1
2.2.10
2.2.11
2.2.12
2.2.13
2.2.13.rc1
2.2.14
2.2.14.rc1
2.2.15
2.2.16
2.2.16.rc1
2.2.17
2.2.17.rc1
2.2.17.rc2
2.2.18
2.2.19
2.2.19.rc1
2.2.19.rc2
2.2.2
2.2.20
2.2.20.rc1
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.alpha1
2.2.beta1
2.2.beta2
2.2.rc1
2.2.rc2
2.2.rc3
2.2.rc4
2.2.rc5
2.2.rc6
2.2.rc7

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-12673.json"