Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/11935?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/11935?format=api", "vulnerability_id": "VCID-x4wf-7dmt-sfaq", "summary": "Out-of-bounds Write\nlibbpf has a heap-based buffer overflow (8 bytes) in __bpf_object__open (called from bpf_object__open_mem and bpf-object-fuzzer.c).", "aliases": [ { "alias": "CVE-2021-45941" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/926899?format=api", "purl": "pkg:deb/debian/libbpf@0.7.0-2?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@0.7.0-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/994726?format=api", "purl": "pkg:deb/debian/libbpf@1.1.2-0%2Bdeb12u1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3qxa-43jg-gfak" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@1.1.2-0%252Bdeb12u1" }, { "url": "http://public2.vulnerablecode.io/api/packages/926898?format=api", "purl": "pkg:deb/debian/libbpf@1.1.2-0%2Bdeb12u1?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3qxa-43jg-gfak" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@1.1.2-0%252Bdeb12u1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/926902?format=api", "purl": "pkg:deb/debian/libbpf@1.5.0-3?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@1.5.0-3%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/926900?format=api", "purl": "pkg:deb/debian/libbpf@1.6.3-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@1.6.3-1%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/926901?format=api", "purl": "pkg:deb/debian/libbpf@1.7.0-1?distro=trixie", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@1.7.0-1%3Fdistro=trixie" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/42839?format=api", "purl": "pkg:conan/libbpf@0.6.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-x1fv-5t74-vugy" }, { "vulnerability": "VCID-x4wf-7dmt-sfaq" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:conan/libbpf@0.6.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/42840?format=api", "purl": "pkg:conan/libbpf@0.6.1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-x1fv-5t74-vugy" }, { "vulnerability": "VCID-x4wf-7dmt-sfaq" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:conan/libbpf@0.6.1" }, { "url": "http://public2.vulnerablecode.io/api/packages/926897?format=api", "purl": "pkg:deb/debian/libbpf@0.3-2?distro=trixie", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3qxa-43jg-gfak" }, { "vulnerability": "VCID-x1fv-5t74-vugy" }, { "vulnerability": "VCID-x4wf-7dmt-sfaq" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@0.3-2%3Fdistro=trixie" }, { "url": "http://public2.vulnerablecode.io/api/packages/994725?format=api", "purl": "pkg:deb/debian/libbpf@0.3-2", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-3qxa-43jg-gfak" }, { "vulnerability": "VCID-4gdy-gqe4-93f4" }, { "vulnerability": "VCID-vu3z-hmu8-fkbn" }, { "vulnerability": "VCID-x1fv-5t74-vugy" }, { "vulnerability": "VCID-x4wf-7dmt-sfaq" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/libbpf@0.3-2" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45941.json", "reference_id": "", "reference_type": "", "scores": [ { "value": "4.5", "scoring_system": "cvssv3", "scoring_elements": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H" } ], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2021-45941.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-45941", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.3675", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36909", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36942", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36774", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36825", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.3684", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36849", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36814", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36789", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36835", "published_at": "2026-04-16T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36818", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36759", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36532", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36501", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36413", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36298", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.00159", "scoring_system": "epss", "scoring_elements": "0.36371", "published_at": "2026-05-07T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-45941" }, { "reference_url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40957", "reference_id": "", "reference_type": "", "scores": [], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40957" }, { "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45941", "reference_id": "", "reference_type": "", "scores": [], "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45941" }, { "reference_url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml", "reference_id": "", "reference_type": "", "scores": [ { "value": "5.1", "scoring_system": "cvssv3.1", "scoring_elements": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L" } ], "url": "https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml" }, { "reference_url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libbpf/OSV-2021-1576.yaml", "reference_id": "", "reference_type": "", "scores": [], "url": "https://github.com/google/oss-fuzz-vulns/blob/main/vulns/libbpf/OSV-2021-1576.yaml" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=2043387", "reference_id": "2043387", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2043387" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45941", "reference_id": "CVE-2021-45941", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45941" }, { "reference_url": "https://usn.ubuntu.com/5759-1/", "reference_id": "USN-5759-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/5759-1/" } ], "weaknesses": [ { "cwe_id": 1035, "name": "OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2017." }, { "cwe_id": 787, "name": "Out-of-bounds Write", "description": "The product writes data past the end, or before the beginning, of the intended buffer." }, { "cwe_id": 937, "name": "OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities", "description": "Weaknesses in this category are related to the A9 category in the OWASP Top Ten 2013." }, { "cwe_id": 120, "name": "Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')", "description": "The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow." } ], "exploits": [], "severity_range_score": "4.5 - 5.1", "exploitability": "0.5", "weighted_severity": "4.0", "risk_score": 2.0, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-x4wf-7dmt-sfaq" }