CVE-2021-3588

memory contents disclosure in cli_feat_read_cb

View on CVE.org

Published Jun 10, 2021 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed

Description

The cli_feat_read_cb() function in src/gatt-database.c does not perform bounds checks on the 'offset' variable before using it as an index into an array for reading.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

BlueZ

BlueZ

affected

Version	Status	Constraints
`unspecified`	affected	< 5.56

Configuration 1 [-]

cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/src/gatt-database.c?id=6a50b6aeda78a88eafb177718109c256eec077a6

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2021-26896	The cli_feat_read_cb() function in src/gatt-database.c does not perform bounds checks on the 'offset' variable before using it as an index into an array for reading.
Ubuntu USN	USN-4989-1	BlueZ vulnerabilities

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Local

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.450% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://github.com/bluez/bluez/issues/70
https://nvd.nist.gov/vuln/detail/CVE-2021-3588
https://security.gentoo.org/glsa/202209-16
https://www.cve.org/CVERecord?id=CVE-2021-3588

History

No history.

Subscriptions

Bluez Bluez

Weaknesses

Sources

CVE record Updated: Sep 16, 2024, 11:37 PM

Status: PUBLISHED
Assigner: canonical
Published: Jun 10, 2021, 2:30 AM
Updated: Sep 16, 2024, 11:37 PM
Reserved: Jun 8, 2021, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 4:05 AM

Status: Modified
Published: Jun 10, 2021, 3:15 AM
Modified: Jun 17, 2026, 4:05 AM

View source JSON

Red Hat Updated: Jan 4, 2021, 12:00 AM

Severity: Low
Public date: Jan 4, 2021, 12:00 AM

View source Bugzilla JSON

OpenCVE enrichment No data

No data.

{"containers": {"cna": {"affected": [{"product": "BlueZ", "vendor": "BlueZ", "versions": [{"lessThan": "5.56", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "datePublic": "2021-06-09T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "The cli_feat_read_cb() function in src/gatt-database.c does not perform bounds checks on the 'offset' variable before using it as an index into an array for reading."}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-788", "description": "CWE-788 Access of Memory Location After End of Buffer", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-125", "description": "CWE-125 Out-of-bounds Read", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2022-09-29T16:07:27.000Z", "orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/bluez/bluez/issues/70"}, {"name": "GLSA-202209-16", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/202209-16"}], "solutions": [{"lang": "en", "value": "https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/src/gatt-database.c?id=6a50b6aeda78a88eafb177718109c256eec077a6"}], "source": {"defect": ["https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1926548"], "discovery": "EXTERNAL"}, "title": "memory contents disclosure in cli_feat_read_cb", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@ubuntu.com", "DATE_PUBLIC": "2021-06-09T00:00:00.000Z", "ID": "CVE-2021-3588", "STATE": "PUBLIC", "TITLE": "memory contents disclosure in cli_feat_read_cb"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "BlueZ", "version": {"version_data": [{"version_affected": "<", "version_value": "5.56"}]}}]}, "vendor_name": "BlueZ"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "The cli_feat_read_cb() function in src/gatt-database.c does not perform bounds checks on the 'offset' variable before using it as an index into an array for reading."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-788 Access of Memory Location After End of Buffer"}]}, {"description": [{"lang": "eng", "value": "CWE-125 Out-of-bounds Read"}]}]}, "references": {"reference_data": [{"name": "https://github.com/bluez/bluez/issues/70", "refsource": "MISC", "url": "https://github.com/bluez/bluez/issues/70"}, {"name": "GLSA-202209-16", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202209-16"}]}, "solution": [{"lang": "en", "value": "https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/src/gatt-database.c?id=6a50b6aeda78a88eafb177718109c256eec077a6"}], "source": {"defect": ["https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1926548"], "discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:01:07.293Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bluez/bluez/issues/70"}, {"name": "GLSA-202209-16", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/202209-16"}]}]}, "cveMetadata": {"assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "assignerShortName": "canonical", "cveId": "CVE-2021-3588", "datePublished": "2021-06-10T02:30:11.654Z", "dateReserved": "2021-06-08T00:00:00.000Z", "dateUpdated": "2024-09-16T23:37:02.790Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "BlueZ", "vendor": "BlueZ", "versions": [{"lessThan": "5.56", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@ubuntu.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*", "matchCriteriaId": "75456FDD-9DF3-44A6-8399-7B5947C2E850", "versionEndExcluding": "5.56", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The cli_feat_read_cb() function in src/gatt-database.c does not perform bounds checks on the 'offset' variable before using it as an index into an array for reading."}, {"lang": "es", "value": "La funci\u00f3n cli_feat_read_cb() en src/gatt-database.c no realiza comprobaciones de l\u00edmites en la variable 'offset' antes de utilizarla como \u00edndice en un array para su lectura"}], "id": "CVE-2021-3588", "lastModified": "2026-06-17T04:05:23.610", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "security@ubuntu.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.3, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-06-10T03:15:07.477", "references": [{"source": "security@ubuntu.com", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/bluez/bluez/issues/70"}, {"source": "security@ubuntu.com", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202209-16"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/bluez/bluez/issues/70"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://security.gentoo.org/glsa/202209-16"}], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-788"}], "source": "security@ubuntu.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}