Vulnerability Instance
Lookup for vulnerabilities affecting packages.
GET /api/vulnerabilities/6703?format=api
{ "url": "http://public2.vulnerablecode.io/api/vulnerabilities/6703?format=api", "vulnerability_id": "VCID-kf5b-ush9-mkd1", "summary": "Out-of-bounds Read\nThe png_format_buffer function in pngerror.c in libpng allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-by-one error by some sources.", "aliases": [ { "alias": "CVE-2011-2501" } ], "fixed_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/73621?format=api", "purl": "pkg:ebuild/media-libs/libpng@1.2.49", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/media-libs/libpng@1.2.49" }, { "url": "http://public2.vulnerablecode.io/api/packages/73622?format=api", "purl": "pkg:ebuild/media-libs/libpng@1.5.10", "is_vulnerable": false, "affected_by_vulnerabilities": [], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:ebuild/media-libs/libpng@1.5.10" }, { "url": "http://public2.vulnerablecode.io/api/packages/19967?format=api", "purl": "pkg:nuget/libpng@1.5.10.9", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-1h1a-mpgm-w3hf" }, { "vulnerability": "VCID-8g2j-rqsk-zqfh" }, { "vulnerability": "VCID-9d14-kqac-nbbt" }, { "vulnerability": "VCID-ajs9-y6dt-5fhj" }, { "vulnerability": "VCID-cu24-1rcd-93g3" }, { "vulnerability": "VCID-h89j-mr17-rua9" }, { "vulnerability": "VCID-una1-4acn-s3dy" }, { "vulnerability": "VCID-zetn-zwnv-u7gf" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/libpng@1.5.10.9" } ], "affected_packages": [ { "url": "http://public2.vulnerablecode.io/api/packages/19964?format=api", "purl": "pkg:nuget/libpng@1.0.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-9dg2-qygx-vbah" }, { "vulnerability": "VCID-axvf-w4r8-xkhv" }, { "vulnerability": "VCID-d5tt-4fbc-m7ar" }, { "vulnerability": "VCID-hfvd-x3vm-fyfz" }, { "vulnerability": "VCID-kf5b-ush9-mkd1" }, { "vulnerability": "VCID-qpn2-bwsx-1kcg" }, { "vulnerability": "VCID-uddn-ka9m-wycz" }, { "vulnerability": "VCID-yga5-gj6n-byga" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/libpng@1.0.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/19965?format=api", "purl": "pkg:nuget/libpng@1.2.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-9dg2-qygx-vbah" }, { "vulnerability": "VCID-axvf-w4r8-xkhv" }, { "vulnerability": "VCID-d5tt-4fbc-m7ar" }, { "vulnerability": "VCID-hfvd-x3vm-fyfz" }, { "vulnerability": "VCID-kf5b-ush9-mkd1" }, { "vulnerability": "VCID-qpn2-bwsx-1kcg" }, { "vulnerability": "VCID-uddn-ka9m-wycz" }, { "vulnerability": "VCID-zetn-zwnv-u7gf" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/libpng@1.2.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/19966?format=api", "purl": "pkg:nuget/libpng@1.4.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-9dg2-qygx-vbah" }, { "vulnerability": "VCID-ajs9-y6dt-5fhj" }, { "vulnerability": "VCID-axvf-w4r8-xkhv" }, { "vulnerability": "VCID-d5tt-4fbc-m7ar" }, { "vulnerability": "VCID-dtf8-3v7n-yydn" }, { "vulnerability": "VCID-hfvd-x3vm-fyfz" }, { "vulnerability": "VCID-kf5b-ush9-mkd1" }, { "vulnerability": "VCID-qpn2-bwsx-1kcg" }, { "vulnerability": "VCID-s9ps-uutg-r7cf" }, { "vulnerability": "VCID-uddn-ka9m-wycz" }, { "vulnerability": "VCID-zetn-zwnv-u7gf" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/libpng@1.4.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/20000?format=api", "purl": "pkg:nuget/libpng@1.5.0", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-9dg2-qygx-vbah" }, { "vulnerability": "VCID-ajs9-y6dt-5fhj" }, { "vulnerability": "VCID-axvf-w4r8-xkhv" }, { "vulnerability": "VCID-cu24-1rcd-93g3" }, { "vulnerability": "VCID-h89j-mr17-rua9" }, { "vulnerability": "VCID-hfvd-x3vm-fyfz" }, { "vulnerability": "VCID-kf5b-ush9-mkd1" }, { "vulnerability": "VCID-qpn2-bwsx-1kcg" }, { "vulnerability": "VCID-uddn-ka9m-wycz" }, { "vulnerability": "VCID-una1-4acn-s3dy" }, { "vulnerability": "VCID-xpad-wqev-ryes" }, { "vulnerability": "VCID-zetn-zwnv-u7gf" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:nuget/libpng@1.5.0" }, { "url": "http://public2.vulnerablecode.io/api/packages/127108?format=api", "purl": "pkg:rpm/redhat/libpng@2:1.2.46-1?arch=el6_1", "is_vulnerable": true, "affected_by_vulnerabilities": [ { "vulnerability": "VCID-kf5b-ush9-mkd1" }, { "vulnerability": "VCID-qpn2-bwsx-1kcg" }, { "vulnerability": "VCID-uddn-ka9m-wycz" } ], "resource_url": "http://public2.vulnerablecode.io/packages/pkg:rpm/redhat/libpng@2:1.2.46-1%3Farch=el6_1" } ], "references": [ { "reference_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-2501.json", "reference_id": "", "reference_type": "", "scores": [], "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2011-2501.json" }, { "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2011-2501", "reference_id": "", "reference_type": "", "scores": [ { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84495", "published_at": "2026-04-01T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84511", "published_at": "2026-04-02T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84532", "published_at": "2026-04-04T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84535", "published_at": "2026-04-07T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84557", "published_at": "2026-04-08T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84563", "published_at": "2026-04-09T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84582", "published_at": "2026-04-11T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84577", "published_at": "2026-04-12T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84573", "published_at": "2026-04-13T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84593", "published_at": "2026-04-18T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84595", "published_at": "2026-04-21T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84621", "published_at": "2026-04-24T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.8463", "published_at": "2026-04-26T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84632", "published_at": "2026-04-29T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84647", "published_at": "2026-05-05T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84673", "published_at": "2026-05-07T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84689", "published_at": "2026-05-09T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84686", "published_at": "2026-05-11T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84703", "published_at": "2026-05-12T12:55:00Z" }, { "value": "0.02245", "scoring_system": "epss", "scoring_elements": "0.84733", "published_at": "2026-05-14T12:55:00Z" } ], "url": "https://api.first.org/data/v1/epss?cve=CVE-2011-2501" }, { "reference_url": "https://bugzilla.redhat.com/show_bug.cgi?id=717084", "reference_id": "717084", "reference_type": "", "scores": [], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=717084" }, { "reference_url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2501", "reference_id": "CVE-2011-2501", "reference_type": "", "scores": [], "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2501" }, { "reference_url": "https://security.gentoo.org/glsa/201206-15", "reference_id": "GLSA-201206-15", "reference_type": "", "scores": [], "url": "https://security.gentoo.org/glsa/201206-15" }, { "reference_url": "https://access.redhat.com/errata/RHSA-2011:1105", "reference_id": "RHSA-2011:1105", "reference_type": "", "scores": [], "url": "https://access.redhat.com/errata/RHSA-2011:1105" }, { "reference_url": "https://usn.ubuntu.com/1175-1/", "reference_id": "USN-1175-1", "reference_type": "", "scores": [], "url": "https://usn.ubuntu.com/1175-1/" } ], "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": 125, "name": "Out-of-bounds Read", "description": "The product reads 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." } ], "exploits": [], "severity_range_score": null, "exploitability": "0.5", "weighted_severity": "0.0", "risk_score": null, "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-kf5b-ush9-mkd1" }