{"url":"http://public2.vulnerablecode.io/api/vulnerabilities/6703?format=json","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=json","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=json","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=json","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=json","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=json","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=json","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=json","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=json","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","p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