gsd-2021-20277
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.
Aliases
Aliases
{ "GSD": { "alias": "CVE-2021-20277", "description": "A flaw was found in Samba\u0027s libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.", "id": "GSD-2021-20277", "references": [ "https://www.suse.com/security/cve/CVE-2021-20277.html", "https://www.debian.org/security/2021/dsa-4884", "https://access.redhat.com/errata/RHSA-2021:2786", "https://access.redhat.com/errata/RHSA-2021:2331", "https://access.redhat.com/errata/RHSA-2021:1214", "https://access.redhat.com/errata/RHSA-2021:1213", "https://access.redhat.com/errata/RHSA-2021:1197", "https://access.redhat.com/errata/RHSA-2021:1072", "https://ubuntu.com/security/CVE-2021-20277", "https://advisories.mageia.org/CVE-2021-20277.html", "https://security.archlinux.org/CVE-2021-20277", "https://alas.aws.amazon.com/cve/html/CVE-2021-20277.html", "https://linux.oracle.com/cve/CVE-2021-20277.html" ] }, "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2021-20277" ], "details": "A flaw was found in Samba\u0027s libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.", "id": "GSD-2021-20277", "modified": "2023-12-13T01:23:11.876353Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-20277", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "samba", "version": { "version_data": [ { "version_value": "samba 4.14.1, samba 4.13.6, samba 4.12.13" } ] } } ] }, "vendor_name": "n/a" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A flaw was found in Samba\u0027s libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-125" } ] } ] }, "references": { "reference_data": [ { "name": "https://security.netapp.com/advisory/ntap-20210326-0007/", "refsource": "CONFIRM", "url": "https://security.netapp.com/advisory/ntap-20210326-0007/" }, { "name": "FEDORA-2021-c2d8628d33", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/" }, { "name": "[debian-lts-announce] 20210331 [SECURITY] [DLA 2611-1] ldb security update", "refsource": "MLIST", "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html" }, { "name": "DSA-4884", "refsource": "DEBIAN", "url": "https://www.debian.org/security/2021/dsa-4884" }, { "name": "FEDORA-2021-1a8e93a285", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/" }, { "name": "FEDORA-2021-c93a3a5d3f", "refsource": "FEDORA", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1941402", "refsource": "MISC", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941402" }, { "name": "https://www.samba.org/samba/security/CVE-2021-20277.html", "refsource": "MISC", "url": "https://www.samba.org/samba/security/CVE-2021-20277.html" }, { "name": "GLSA-202105-22", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202105-22" } ] } }, "nvd.nist.gov": { "configurations": { "CVE_data_version": "4.0", "nodes": [ { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.14.1", "versionStartIncluding": "4.14.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.13.6", "versionStartIncluding": "4.13.0", "vulnerable": true }, { "cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*", "cpe_name": [], "versionEndExcluding": "4.12.13", "versionStartIncluding": "4.0.0", "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" }, { "children": [], "cpe_match": [ { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true }, { "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true } ], "operator": "OR" } ] }, "cve": { "CVE_data_meta": { "ASSIGNER": "secalert@redhat.com", "ID": "CVE-2021-20277" }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "en", "value": "A flaw was found in Samba\u0027s libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "en", "value": "CWE-787" } ] } ] }, "references": { "reference_data": [ { "name": "[debian-lts-announce] 20210331 [SECURITY] [DLA 2611-1] ldb security update", "refsource": "MLIST", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html" }, { "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1941402", "refsource": "MISC", "tags": [ "Issue Tracking", "Third Party Advisory" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1941402" }, { "name": "https://www.samba.org/samba/security/CVE-2021-20277.html", "refsource": "MISC", "tags": [ "Vendor Advisory" ], "url": "https://www.samba.org/samba/security/CVE-2021-20277.html" }, { "name": "https://security.netapp.com/advisory/ntap-20210326-0007/", "refsource": "CONFIRM", "tags": [ "Third Party Advisory" ], "url": "https://security.netapp.com/advisory/ntap-20210326-0007/" }, { "name": "FEDORA-2021-1a8e93a285", "refsource": "FEDORA", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/" }, { "name": "FEDORA-2021-c93a3a5d3f", "refsource": "FEDORA", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/" }, { "name": "DSA-4884", "refsource": "DEBIAN", "tags": [ "Third Party Advisory" ], "url": "https://www.debian.org/security/2021/dsa-4884" }, { "name": "FEDORA-2021-c2d8628d33", "refsource": "FEDORA", "tags": [ "Mailing List", "Third Party Advisory" ], "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/" }, { "name": "GLSA-202105-22", "refsource": "GENTOO", "tags": [ "Third Party Advisory" ], "url": "https://security.gentoo.org/glsa/202105-22" } ] } }, "impact": { "baseMetricV2": { "acInsufInfo": false, "cvssV2": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false }, "baseMetricV3": { "cvssV3": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } }, "lastModifiedDate": "2022-08-05T16:01Z", "publishedDate": "2021-05-12T14:15Z" } } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.