CVE-2021-27212

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Source
https://cve.org/CVERecord?id=CVE-2021-27212
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-27212.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-27212
Aliases
Downstream
Related
Published
2021-02-14T03:15:12.957Z
Modified
2026-06-26T03:54:23.630225174Z
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 OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "last_affected": "9.0"
                },
                {
                    "last_affected": "10.0"
                }
            ],
            "vendor_product": "debian:debian_linux"
        }
    ]
}
References

Affected packages

Git / git.openldap.org/openldap/openldap

Affected ranges

Type
GIT
Repo
https://git.openldap.org/openldap/openldap
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
3b03d6bea27f29b7f7f91b3d5488fbd6e69b6c29
Last affected
7e717b033a73e47e7fadeee378e6aae28884e050
Last affected
4f2d6dd1ff980b7b51b0a8bbcbb08cdaa96826a3
Database specific 
{
    "cpe": [
        "cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:openldap:openldap:2.5.0:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:openldap:openldap:2.5.1:alpha:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.4.57"
        },
        {
            "last_affected": "2.5.0-alpha"
        },
        {
            "last_affected": "2.5.1-alpha"
        }
    ]
}

Affected versions

Other
ACLCHECK_0
AUTOCONF_2_57
LDAP_3_3+prerelease
LDBM_POST_GIANT_RWLOCK
LDBM_PRE_GIANT_RWLOCK
LOCKER_IDS
MIGRATION_CVS2GIT
NO_SLAP_OP_BLOCKS
OPENDLAP_REL_ENG_2_2_MP
OPENLDAP_AC_BP
OPENLDAP_REL_ENG_1_0_0
OPENLDAP_REL_ENG_2_1_BP
OPENLDAP_REL_ENG_2_1_MP
OPENLDAP_REL_ENG_2_2_BP
OPENLDAP_REL_ENG_2_2_MP
OPENLDAP_REL_ENG_2_3_BP
OPENLDAP_REL_ENG_2_3_MP
OPENLDAP_REL_ENG_2_4_0ALPHA
OPENLDAP_REL_ENG_2_4_10
OPENLDAP_REL_ENG_2_4_11
OPENLDAP_REL_ENG_2_4_12
OPENLDAP_REL_ENG_2_4_13
OPENLDAP_REL_ENG_2_4_14
OPENLDAP_REL_ENG_2_4_15
OPENLDAP_REL_ENG_2_4_16
OPENLDAP_REL_ENG_2_4_17
OPENLDAP_REL_ENG_2_4_18
OPENLDAP_REL_ENG_2_4_19
OPENLDAP_REL_ENG_2_4_1ALPHA
OPENLDAP_REL_ENG_2_4_20
OPENLDAP_REL_ENG_2_4_21
OPENLDAP_REL_ENG_2_4_22
OPENLDAP_REL_ENG_2_4_23
OPENLDAP_REL_ENG_2_4_24
OPENLDAP_REL_ENG_2_4_25
OPENLDAP_REL_ENG_2_4_26
OPENLDAP_REL_ENG_2_4_27
OPENLDAP_REL_ENG_2_4_28
OPENLDAP_REL_ENG_2_4_29
OPENLDAP_REL_ENG_2_4_2ALPHA
OPENLDAP_REL_ENG_2_4_30
OPENLDAP_REL_ENG_2_4_32
OPENLDAP_REL_ENG_2_4_33
OPENLDAP_REL_ENG_2_4_34
OPENLDAP_REL_ENG_2_4_35
OPENLDAP_REL_ENG_2_4_36
OPENLDAP_REL_ENG_2_4_37
OPENLDAP_REL_ENG_2_4_38
OPENLDAP_REL_ENG_2_4_39
OPENLDAP_REL_ENG_2_4_3ALPHA
OPENLDAP_REL_ENG_2_4_40
OPENLDAP_REL_ENG_2_4_41
OPENLDAP_REL_ENG_2_4_42
OPENLDAP_REL_ENG_2_4_43
OPENLDAP_REL_ENG_2_4_44
OPENLDAP_REL_ENG_2_4_45
OPENLDAP_REL_ENG_2_4_46
OPENLDAP_REL_ENG_2_4_47
OPENLDAP_REL_ENG_2_4_48
OPENLDAP_REL_ENG_2_4_49
OPENLDAP_REL_ENG_2_4_4ALPHA
OPENLDAP_REL_ENG_2_4_50
OPENLDAP_REL_ENG_2_4_51
OPENLDAP_REL_ENG_2_4_52
OPENLDAP_REL_ENG_2_4_53
OPENLDAP_REL_ENG_2_4_54
OPENLDAP_REL_ENG_2_4_55
OPENLDAP_REL_ENG_2_4_56
OPENLDAP_REL_ENG_2_4_57
OPENLDAP_REL_ENG_2_4_5BETA
OPENLDAP_REL_ENG_2_4_6
OPENLDAP_REL_ENG_2_4_7
OPENLDAP_REL_ENG_2_4_8
OPENLDAP_REL_ENG_2_4_9
OPENLDAP_REL_ENG_2_4_BP
OPENLDAP_REL_ENG_2_4_MP
OPENLDAP_REL_ENG_2_5_0ALPHA
OPENLDAP_REL_ENG_2_5_1ALPHA
OPENLDAP_REL_ENG_2_BP
OPENLDAP_REL_ENG_2_MP
OPENLDAP_SLAPD_BACK_LDAP

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-27212.json"

Git / github.com/openldap/openldap

Affected ranges

Type
GIT
Repo
https://github.com/openldap/openldap
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
3b03d6bea27f29b7f7f91b3d5488fbd6e69b6c29
Last affected
7e717b033a73e47e7fadeee378e6aae28884e050
Last affected
4f2d6dd1ff980b7b51b0a8bbcbb08cdaa96826a3
Database specific 
{
    "cpe": [
        "cpe:2.3:a:openldap:openldap:*:*:*:*:*:*:*:*",
        "cpe:2.3:a:openldap:openldap:2.5.0:alpha:*:*:*:*:*:*",
        "cpe:2.3:a:openldap:openldap:2.5.1:alpha:*:*:*:*:*:*"
    ],
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.4.57"
        },
        {
            "last_affected": "2.5.0-alpha"
        },
        {
            "last_affected": "2.5.1-alpha"
        }
    ]
}

Affected versions

Other
ACLCHECK_0
AUTOCONF_2_57
LDAP_3_3+prerelease
LDBM_POST_GIANT_RWLOCK
LDBM_PRE_GIANT_RWLOCK
LOCKER_IDS
MIGRATION_CVS2GIT
NO_SLAP_OP_BLOCKS
OPENDLAP_REL_ENG_2_2_MP
OPENLDAP_AC_BP
OPENLDAP_REL_ENG_1_0_0
OPENLDAP_REL_ENG_2_1_BP
OPENLDAP_REL_ENG_2_1_MP
OPENLDAP_REL_ENG_2_2_BP
OPENLDAP_REL_ENG_2_2_MP
OPENLDAP_REL_ENG_2_3_BP
OPENLDAP_REL_ENG_2_3_MP
OPENLDAP_REL_ENG_2_4_0ALPHA
OPENLDAP_REL_ENG_2_4_10
OPENLDAP_REL_ENG_2_4_11
OPENLDAP_REL_ENG_2_4_12
OPENLDAP_REL_ENG_2_4_13
OPENLDAP_REL_ENG_2_4_14
OPENLDAP_REL_ENG_2_4_15
OPENLDAP_REL_ENG_2_4_16
OPENLDAP_REL_ENG_2_4_17
OPENLDAP_REL_ENG_2_4_18
OPENLDAP_REL_ENG_2_4_19
OPENLDAP_REL_ENG_2_4_1ALPHA
OPENLDAP_REL_ENG_2_4_20
OPENLDAP_REL_ENG_2_4_21
OPENLDAP_REL_ENG_2_4_22
OPENLDAP_REL_ENG_2_4_23
OPENLDAP_REL_ENG_2_4_24
OPENLDAP_REL_ENG_2_4_25
OPENLDAP_REL_ENG_2_4_26
OPENLDAP_REL_ENG_2_4_27
OPENLDAP_REL_ENG_2_4_28
OPENLDAP_REL_ENG_2_4_29
OPENLDAP_REL_ENG_2_4_2ALPHA
OPENLDAP_REL_ENG_2_4_30
OPENLDAP_REL_ENG_2_4_32
OPENLDAP_REL_ENG_2_4_33
OPENLDAP_REL_ENG_2_4_34
OPENLDAP_REL_ENG_2_4_35
OPENLDAP_REL_ENG_2_4_36
OPENLDAP_REL_ENG_2_4_37
OPENLDAP_REL_ENG_2_4_38
OPENLDAP_REL_ENG_2_4_39
OPENLDAP_REL_ENG_2_4_3ALPHA
OPENLDAP_REL_ENG_2_4_40
OPENLDAP_REL_ENG_2_4_41
OPENLDAP_REL_ENG_2_4_42
OPENLDAP_REL_ENG_2_4_43
OPENLDAP_REL_ENG_2_4_44
OPENLDAP_REL_ENG_2_4_45
OPENLDAP_REL_ENG_2_4_46
OPENLDAP_REL_ENG_2_4_47
OPENLDAP_REL_ENG_2_4_48
OPENLDAP_REL_ENG_2_4_49
OPENLDAP_REL_ENG_2_4_4ALPHA
OPENLDAP_REL_ENG_2_4_50
OPENLDAP_REL_ENG_2_4_51
OPENLDAP_REL_ENG_2_4_52
OPENLDAP_REL_ENG_2_4_53
OPENLDAP_REL_ENG_2_4_54
OPENLDAP_REL_ENG_2_4_55
OPENLDAP_REL_ENG_2_4_56
OPENLDAP_REL_ENG_2_4_57
OPENLDAP_REL_ENG_2_4_5BETA
OPENLDAP_REL_ENG_2_4_6
OPENLDAP_REL_ENG_2_4_7
OPENLDAP_REL_ENG_2_4_8
OPENLDAP_REL_ENG_2_4_9
OPENLDAP_REL_ENG_2_4_BP
OPENLDAP_REL_ENG_2_4_MP
OPENLDAP_REL_ENG_2_5_0ALPHA
OPENLDAP_REL_ENG_2_5_1ALPHA
OPENLDAP_REL_ENG_2_BP
OPENLDAP_REL_ENG_2_MP
OPENLDAP_SLAPD_BACK_LDAP

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-27212.json"