CVE-2020-36226

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Source
https://cve.org/CVERecord?id=CVE-2020-36226
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-36226.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-36226
Aliases
Downstream
Related
Published
2021-01-26T18:15:57.100Z
Modified
2026-03-13T00:42:04.629246Z
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

A flaw was discovered in OpenLDAP before 2.4.57 leading to a memch->bv_len miscalculation and slapd crash in the saslAuthzTo processing, resulting in denial of service.

References

Affected packages

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
Fixed
3b03d6bea27f29b7f7f91b3d5488fbd6e69b6c29
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "2.4.57"
        }
    ]
}

Affected versions

Other
AUTOCONF_2_57
FreeBSD_3_3
LDAP_3_3+prerelease
LDBM_POST_GIANT_RWLOCK
LDBM_PRE_GIANT_RWLOCK
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_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_BP
OPENLDAP_REL_ENG_2_MP
OPENLDAP_SLAPD_BACK_LDAP
UMICH_LDAP_3_3
LMDB_0.*
LMDB_0.9.15
LMDB_0.9.16
LMDB_0.9.17
LMDB_0.9.18
LMDB_0.9.19
LMDB_0.9.20
LMDB_0.9.21
LMDB_0.9.22
LMDB_0.9.23
LMDB_0.9.24
LMDB_0.9.25
LMDB_0.9.26
LMDB_0.9.27

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "9.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "10.14.0"
            },
            {
                "fixed": "10.14.6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-NA"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2019\\-004"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2019\\-005"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2019\\-006"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2019\\-007"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-001"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-002"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-003"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-004"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-005"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-006"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2020\\-007"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2021\\-001"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2021\\-002"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-security_update_2021\\-003"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-supplemental_update"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.14.6-supplemental_update_2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "11.1"
            },
            {
                "fixed": "11.4"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-36226.json"