Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/58396?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/58396?format=api", "vulnerability_id": "VCID-twz6-mtum-qbck", "summary": "A double-free was found in the way 389-ds-base handles virtual attributes context in persistent searches. An attacker could send a series of search requests, forcing the server to behave unexpectedly, and crash.", "aliases": [ { "alias": "CVE-2021-4091" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/87666?format=api", "purl": "pkg:deb/debian/389-ds-base@1.4.4.11-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5mdk-bqm7-mkeu" }, { "vulnerability": "VCID-7dna-4mcn-jqd5" }, { "vulnerability": "VCID-ft29-jr9j-jbbm" }, { "vulnerability": "VCID-k27f-tsq5-73fn" }, { "vulnerability": "VCID-ud9m-jz3k-bfhm" }, { "vulnerability": "VCID-vadc-mdbp-q3g9" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/389-ds-base@1.4.4.11-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/87692?format=api", "purl": "pkg:deb/debian/389-ds-base@1.4.4.11-2%2Bdeb11u1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/389-ds-base@1.4.4.11-2%252Bdeb11u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/87693?format=api", "purl": "pkg:deb/debian/389-ds-base@2.0.15-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/389-ds-base@2.0.15-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/87664?format=api", "purl": "pkg:deb/debian/389-ds-base@2.3.1%2Bdfsg1-1%2Bdeb12u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-5mdk-bqm7-mkeu" }, { "vulnerability": "VCID-7dna-4mcn-jqd5" }, { "vulnerability": "VCID-ft29-jr9j-jbbm" }, { "vulnerability": "VCID-k27f-tsq5-73fn" }, { "vulnerability": "VCID-ud9m-jz3k-bfhm" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/389-ds-base@2.3.1%252Bdfsg1-1%252Bdeb12u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/87668?format=api", "purl": "pkg:deb/debian/389-ds-base@3.1.2%2Bdfsg1-1%2Bdeb13u1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/389-ds-base@3.1.2%252Bdfsg1-1%252Bdeb13u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/87667?format=api", "purl": "pkg:deb/debian/389-ds-base@3.1.2%2Bvendor1-2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/389-ds-base@3.1.2%252Bvendor1-2%3Fdistro=trixie" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/134369?format=api", "purl": "pkg:rpm/redhat/389-ds-base@1.3.10.2-15?arch=el7_9", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-twz6-mtum-qbck" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/389-ds-base@1.3.10.2-15%3Farch=el7_9" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4091.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "7.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-4091.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-4091", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00342", "scoring_system": "epss", "scoring_elements": "0.57095", "published_at": "2026-06-04T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-4091" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2030307", "reference_id": "2030307", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2030307" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2022:0628", "reference_id": "RHSA-2022:0628", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2022:0628" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2022:0889", "reference_id": "RHSA-2022:0889", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2022:0889" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2022:0952", "reference_id": "RHSA-2022:0952", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2022:0952" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2022:1410", "reference_id": "RHSA-2022:1410", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2022:1410" } ], "weaknesses": [ { "cwe_id": 415, "name": "Double Free", "description": "The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations." } ], "exploits": [], "severity_range_score": "7.5 - 7.5", "exploitability": "0.5", "weighted_severity": "6.8", "risk_score": 3.4, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-twz6-mtum-qbck" }