CVE-2021-3671

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Source
https://cve.org/CVERecord?id=CVE-2021-3671
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3671.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-3671
Downstream
Related
Published
2021-10-12T18:15:08.357Z
Modified
2026-06-18T04:06:53.950859859Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "last_affected": "10.0"
                },
                {
                    "last_affected": "11.0"
                }
            ],
            "vendor_product": "debian:debian_linux"
        }
    ]
}
References

Affected packages

Git / github.com/heimdal/heimdal

Affected ranges

Type
GIT
Repo
https://github.com/heimdal/heimdal
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
04171147948d0a3636bc6374181926f0fb2ec83a
Database specific 
{
    "source": "REFERENCES"
}

Affected versions

Other
git2svn-syncpoint-master
switch-from-svn-to-git
heimdal-1.*
heimdal-1.3.0pre1
heimdal-1.3.0pre10
heimdal-1.3.0pre11
heimdal-1.3.0pre3
heimdal-1.3.0pre4
heimdal-1.3.0pre5
heimdal-1.3.0pre6
heimdal-1.3.0pre7
heimdal-1.3.0pre8
heimdal-1.3.0pre9
heimdal-1.3.0rc1
heimdal-1.5pre1
heimdal-1.5pre2
upstream-1.*
upstream-1.4.0+git20101228.dfsg.1
upstream-1.4.0+git20110220.dfsg.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3671.json"

Git / github.com/samba-team/samba

Affected ranges

Type
GIT
Repo
https://github.com/samba-team/samba
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
aa756f3f9fc88bbd10c6a3a7c1827ca09a669714
Introduced
9b49519cae3e967af9ea48dc5fcfb6c145e31db4
Fixed
d1c9330fa69ba6942ab23843e21acc11767d54ee
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.13.12"
        },
        {
            "introduced": "4.14.0"
        },
        {
            "fixed": "4.14.8"
        }
    ],
    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*"
}

Affected versions

ldb-1.*
ldb-1.1.0
ldb-1.1.10
ldb-1.1.11
ldb-1.1.12
ldb-1.1.13
ldb-1.1.14
ldb-1.1.15
ldb-1.1.16
ldb-1.1.17
ldb-1.1.18
ldb-1.1.19
ldb-1.1.2
ldb-1.1.20
ldb-1.1.21
ldb-1.1.22
ldb-1.1.23
ldb-1.1.25
ldb-1.1.26
ldb-1.1.27
ldb-1.1.28
ldb-1.1.29
ldb-1.1.3
ldb-1.1.30
ldb-1.1.31
ldb-1.1.4
ldb-1.1.5
ldb-1.1.6
ldb-1.1.8
ldb-1.1.9
ldb-1.2.0
ldb-1.2.1
ldb-1.2.2
ldb-1.3.0
ldb-1.3.1
ldb-1.3.2
ldb-1.4.0
ldb-1.4.1
ldb-1.5.0
ldb-1.5.1
ldb-1.5.2
ldb-1.6.1
ldb-1.6.2
ldb-1.6.3
ldb-2.*
ldb-2.0.5
ldb-2.1.0
ldb-2.1.1
ldb-2.2.0
samba-4.*
samba-4.0.0alpha10
samba-4.0.0alpha17
samba-4.0.0alpha18
samba-4.0.0alpha19
samba-4.0.0alpha20
samba-4.0.0alpha21
samba-4.0.0alpha6
samba-4.0.0alpha7
samba-4.0.0alpha8
samba-4.0.0alpha9
samba-4.0.0beta1
samba-4.0.0beta2
samba-4.0.0beta3
samba-4.0.0beta4
samba-4.0.0beta5
samba-4.0.0beta6
samba-4.0.0beta7
samba-4.0.0beta8
samba-4.0.0rc1
samba-4.10.0rc1
samba-4.11.0rc1
samba-4.12.0rc1
samba-4.13.0
samba-4.13.0rc1
samba-4.13.0rc2
samba-4.13.0rc3
samba-4.13.0rc4
samba-4.13.0rc5
samba-4.13.0rc6
samba-4.13.10
samba-4.13.11
samba-4.13.2
samba-4.13.3
samba-4.13.4
samba-4.13.5
samba-4.13.9
samba-4.14.0
samba-4.14.3
samba-4.14.5
samba-4.14.6
samba-4.14.7
samba-4.2.0rc1
samba-4.3.0rc1
samba-4.4.0rc1
samba-4.5.0rc1
samba-4.6.0rc1
samba-4.7.0rc1
samba-4.8.0rc1
samba-4.9.0rc1
talloc-1.*
talloc-1.3.1
talloc-2.*
talloc-2.0.0
talloc-2.0.7
talloc-2.0.8
talloc-2.1.0
talloc-2.1.1
talloc-2.1.10
talloc-2.1.11
talloc-2.1.12
talloc-2.1.13
talloc-2.1.14
talloc-2.1.15
talloc-2.1.16
talloc-2.1.2
talloc-2.1.3
talloc-2.1.4
talloc-2.1.5
talloc-2.1.6
talloc-2.1.7
talloc-2.1.8
talloc-2.1.9
talloc-2.2.0
talloc-2.3.0
talloc-2.3.1
tdb-1.*
tdb-1.1.5
tdb-1.2.0
tdb-1.2.1
tdb-1.2.10
tdb-1.2.11
tdb-1.2.12
tdb-1.2.13
tdb-1.3.0
tdb-1.3.1
tdb-1.3.10
tdb-1.3.11
tdb-1.3.12
tdb-1.3.13
tdb-1.3.14
tdb-1.3.15
tdb-1.3.16
tdb-1.3.17
tdb-1.3.18
tdb-1.3.2
tdb-1.3.3
tdb-1.3.4
tdb-1.3.5
tdb-1.3.6
tdb-1.3.7
tdb-1.3.8
tdb-1.3.9
tdb-1.4.0
tdb-1.4.1
tdb-1.4.2
tdb-1.4.3
tevent-0.*
tevent-0.10.0
tevent-0.10.1
tevent-0.10.2
tevent-0.9.11
tevent-0.9.12
tevent-0.9.13
tevent-0.9.14
tevent-0.9.15
tevent-0.9.16
tevent-0.9.17
tevent-0.9.18
tevent-0.9.19
tevent-0.9.20
tevent-0.9.21
tevent-0.9.22
tevent-0.9.23
tevent-0.9.24
tevent-0.9.25
tevent-0.9.26
tevent-0.9.27
tevent-0.9.28
tevent-0.9.29
tevent-0.9.30
tevent-0.9.31
tevent-0.9.32
tevent-0.9.33
tevent-0.9.34
tevent-0.9.35
tevent-0.9.36
tevent-0.9.37
tevent-0.9.38
tevent-0.9.39
tevent-0.9.8

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-3671.json"